logging.c File Reference

#include "logging.h"

Include dependency graph for logging.c:

Go to the source code of this file.

Data Structures
struct	ProfiledFunction

Macros
#define	TMP_BUF_SIZE   128
#define	__FUNCT__   "DualKSPMonitor"
	A custom KSP monitor that logs the true residual to a file and optionally to the console.
#define	__FUNCT__   "LOG_CONTINUITY_METRICS"
	A custom KSP monitor that logs the true residual to a file and optionally to the console.

Functions
LogLevel	get_log_level ()
	Retrieves the current logging level from the environment variable LOG_LEVEL.
PetscErrorCode	print_log_level (void)
	Prints the current logging level to the console.
void	set_allowed_functions (const char **functionList, int count)
	Sets the global list of function names that are allowed to log.
PetscBool	is_function_allowed (const char *functionName)
	Checks if the given function name is in the allow-list.
PetscErrorCode	LOG_CELL_VERTICES (const Cell *cell, PetscMPIInt rank)
	Prints the coordinates of a cell's vertices.
PetscErrorCode	LOG_FACE_DISTANCES (PetscReal *d)
	Prints the signed distances to each face of the cell.
static void	IntToStr (int value, char *buf, size_t bufsize)
static void	Int64ToStr (PetscInt64 value, char *buf, size_t bufsize)
static void	CellToStr (const PetscInt *cell, char *buf, size_t bufsize)
static void	TripleRealToStr (const PetscReal *arr, char *buf, size_t bufsize)
static PetscErrorCode	ComputeMaxColumnWidths (PetscInt nParticles, const PetscMPIInt *ranks, const PetscInt64 *pids, const PetscInt *cellIDs, const PetscReal *positions, const PetscReal *velocities, const PetscReal *weights, int *wRank, int *wPID, int *wCell, int *wPos, int *wVel, int *wWt)
static void	BuildRowFormatString (PetscMPIInt wRank, PetscInt wPID, PetscInt wCell, PetscInt wPos, PetscInt wVel, PetscInt wWt, char *fmtStr, size_t bufSize)
static void	BuildHeaderString (char *headerStr, size_t bufSize, PetscMPIInt wRank, PetscInt wPID, PetscInt wCell, PetscInt wPos, PetscInt wVel, PetscInt wWt)
PetscErrorCode	LOG_PARTICLE_FIELDS (UserCtx *user, PetscInt printInterval)
	Prints particle fields in a table that automatically adjusts its column widths.
static void	trim (char *s)
PetscErrorCode	LoadAllowedFunctionsFromFile (const char filename[], char ***funcsOut, PetscInt *nOut)
	Load function names from a text file.
PetscErrorCode	FreeAllowedFunctions (char **funcs, PetscInt n)
	Free an array previously returned by LoadAllowedFunctionsFromFile().
const char *	BCFaceToString (BCFace face)
	Helper function to convert BCFace enum to a string representation.
const char *	BCTypeToString (BCType type)
	Helper function to convert BCType enum to a string representation.
const char *	BCHandlerTypeToString (BCHandlerType handler_type)
	Converts a BCHandlerType enum to its string representation.
PetscErrorCode	DualMonitorDestroy (void **ctx)
	Destroys the DualMonitorCtx.
PetscErrorCode	DualKSPMonitor (KSP ksp, PetscInt it, PetscReal rnorm, void *ctx)
	A custom KSP monitor that logs to a file and optionally to the console.
PetscErrorCode	LOG_CONTINUITY_METRICS (UserCtx *user)
	Logs continuity metrics for a single block to a file.
const char *	ParticleLocationStatusToString (ParticleLocationStatus level)
	A function that outputs the name of the current level in the ParticleLocation enum.
static PetscErrorCode	_FindOrCreateEntry (const char *func_name, PetscInt *idx)
PetscErrorCode	ProfilingInitialize (SimCtx *simCtx)
	Initializes the custom profiling system using configuration from SimCtx.
void	_ProfilingStart (const char *func_name)
void	_ProfilingEnd (const char *func_name)
PetscErrorCode	ProfilingLogTimestepSummary (PetscInt step)
	Logs the performance summary for the current timestep and resets timers.
static int	_CompareProfiledFunctions (const void *a, const void *b)
PetscErrorCode	ProfilingFinalize (void)
	Prints the final, cumulative performance summary and cleans up resources.

Variables
static LogLevel	current_log_level = -1
	Static variable to cache the current logging level.
static char **	gAllowedFunctions = NULL
	Global/static array of function names allowed to log.
static int	gNumAllowed = 0
	Number of entries in the gAllowedFunctions array.
PetscLogEvent	EVENT_Individualwalkingsearch = 0
PetscLogEvent	EVENT_walkingsearch = 0
PetscLogEvent	EVENT_GlobalParticleLocation = 0
PetscLogEvent	EVENT_IndividualLocation = 0
static ProfiledFunction *	g_profiler_registry = NULL
static PetscInt	g_profiler_count = 0
static PetscInt	g_profiler_capacity = 0

---

Data Structure Documentation

ProfiledFunction

struct ProfiledFunction

Definition at line 893 of file logging.c.

Data Fields
const char *	name
double	total_time
double	current_step_time
long long	total_call_count
long long	current_step_call_count
double	start_time
PetscBool	always_log

Macro Definition Documentation

TMP_BUF_SIZE

#define TMP_BUF_SIZE   128

Definition at line 5 of file logging.c.

__FUNCT__ [1/2]

#define __FUNCT__   "DualKSPMonitor"

A custom KSP monitor that logs the true residual to a file and optionally to the console.

Logs continuity metrics for a single block to a file.

This function replicates the behavior of KSPMonitorTrueResidualNorm by calculating the true residual norm ||b - Ax|| itself. It unconditionally logs to a file viewer and conditionally logs to the console based on a flag in the context.

Parameters

ksp	The Krylov subspace context.
it	The current iteration number.
rnorm	The preconditioned residual norm (ignored, we compute our own).
ctx	A pointer to the DualMonitorCtx structure.

Returns

PetscErrorCode 0 on success.

This function should be called for each block, once per timestep. It opens a central log file in append mode. To ensure the header is written only once, it checks if it is processing block 0 on the simulation's start step.

Parameters

user	A pointer to the UserCtx for the specific block whose metrics are to be logged. The function accesses both global (SimCtx) and local (user->...) data.

Returns

PetscErrorCode 0 on success.

Definition at line 758 of file logging.c.

__FUNCT__ [2/2]

#define __FUNCT__   "LOG_CONTINUITY_METRICS"

A custom KSP monitor that logs the true residual to a file and optionally to the console.

Logs continuity metrics for a single block to a file.

This function replicates the behavior of KSPMonitorTrueResidualNorm by calculating the true residual norm ||b - Ax|| itself. It unconditionally logs to a file viewer and conditionally logs to the console based on a flag in the context.

Parameters

ksp	The Krylov subspace context.
it	The current iteration number.
rnorm	The preconditioned residual norm (ignored, we compute our own).
ctx	A pointer to the DualMonitorCtx structure.

Returns

PetscErrorCode 0 on success.

This function should be called for each block, once per timestep. It opens a central log file in append mode. To ensure the header is written only once, it checks if it is processing block 0 on the simulation's start step.

Parameters

user	A pointer to the UserCtx for the specific block whose metrics are to be logged. The function accesses both global (SimCtx) and local (user->...) data.

Returns

PetscErrorCode 0 on success.

Definition at line 758 of file logging.c.

Function Documentation

get_log_level()

LogLevel get_log_level

(

)

Retrieves the current logging level from the environment variable LOG_LEVEL.

The function checks the LOG_LEVEL environment variable and sets the logging level accordingly. Supported levels are "DEBUG", "INFO", "WARNING", and defaults to "ERROR" if not set or unrecognized. The log level is cached after the first call to avoid repeated environment variable checks.

Returns

LogLevel The current logging level.

Definition at line 49 of file logging.c.

                         {
    if (current_log_level == -1) { // Log level not set yet
        const char *env = getenv("LOG_LEVEL");
        if (!env) {
            current_log_level = LOG_ERROR; // Default level
        }
        else if (strcmp(env, "DEBUG") == 0) {
            current_log_level = LOG_DEBUG;
        }
        else if (strcmp(env, "INFO") == 0) {
            current_log_level = LOG_INFO;
        }
        else if (strcmp(env, "WARNING") == 0) {
            current_log_level = LOG_WARNING;
        }
        else if (strcmp(env, "PROFILE") == 0) {  // <-- New profile level
            current_log_level = LOG_PROFILE;
        }
        else {
            current_log_level = LOG_ERROR; // Default if unrecognized
        }
    }
    return current_log_level;
}

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print_log_level()

PetscErrorCode print_log_level

(

void

)

Prints the current logging level to the console.

This function retrieves the log level using get_log_level() and prints the corresponding log level name. It helps verify the logging configuration at runtime.

Note

The log level is determined from the LOG_LEVEL environment variable. If LOG_LEVEL is not set, it defaults to LOG_INFO.

See also

get_log_level()

Definition at line 86 of file logging.c.

{
  PetscMPIInt     rank;
  PetscErrorCode  ierr;
  int             level;
  const char     *level_name;
 
  PetscFunctionBeginUser;
  /* get MPI rank */
  ierr = MPI_Comm_rank(PETSC_COMM_WORLD, &rank); CHKERRMPI(ierr);
 
  /* decide level name */
  level       = get_log_level();
  level_name = (level == LOG_ERROR)   ? "ERROR"   :
               (level == LOG_WARNING) ? "WARNING" :
               (level == LOG_INFO)    ? "INFO"    :
               (level == LOG_DEBUG)   ? "DEBUG"   :
               (level == LOG_PROFILE) ? "PROFILE" : "UNKNOWN";
 
  /* print it out */
  ierr = PetscPrintf(PETSC_COMM_SELF,
                     "Current log level: %s (%d) | rank: %d\n",
                     level_name, level, (int)rank);
  CHKERRMPI(ierr);
 
  PetscFunctionReturn(PETSC_SUCCESS);
}

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set_allowed_functions()

void set_allowed_functions	(	const char **	functionList,
		int	count
	)

Sets the global list of function names that are allowed to log.

Parameters

functionList	An array of function name strings (e.g., {"foo", "bar"}).
count	The number of entries in the array.

The existing allow-list is cleared and replaced by the new one. If you pass an empty list (count = 0), then no function will be allowed unless you change it later.

Definition at line 124 of file logging.c.

{
    // 1. Free any existing entries
    if (gAllowedFunctions) {
        for (int i = 0; i < gNumAllowed; ++i) {
            free(gAllowedFunctions[i]); // each was strdup'ed
        }
        free(gAllowedFunctions);
        gAllowedFunctions = NULL;
        gNumAllowed = 0;
    }
 
    // 2. Allocate new array
    if (count > 0) {
        gAllowedFunctions = (char**)malloc(sizeof(char*) * count);
    }
 
    // 3. Copy the new entries
    for (int i = 0; i < count; ++i) {
        // strdup is a POSIX function. If not available, implement your own string copy.
        gAllowedFunctions[i] = strdup(functionList[i]);
    }
    gNumAllowed = count;
}

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is_function_allowed()

PetscBool is_function_allowed

(

const char *

functionName

)

Checks if the given function name is in the allow-list.

Checks if a given function is in the allow-list.

Parameters

functionName

The name of the function to check.

Returns

PETSC_TRUE if functionName is allowed, otherwise PETSC_FALSE.

If no functions are in the list, nothing is allowed by default. You can reverse this logic if you prefer to allow everything unless specified otherwise.

Definition at line 159 of file logging.c.

{
    /* no list ⇒ allow all */
    if (gNumAllowed == 0) {
        return PETSC_TRUE;
    }
 
    /* otherwise only the listed functions are allowed */
    for (int i = 0; i < gNumAllowed; ++i) {
        if (strcmp(gAllowedFunctions[i], functionName) == 0) {
            return PETSC_TRUE;
        }
    }
    return PETSC_FALSE;
}

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LOG_CELL_VERTICES()

PetscErrorCode LOG_CELL_VERTICES	(	const Cell *	cell,
		PetscMPIInt	rank
	)

Prints the coordinates of a cell's vertices.

This function iterates through the eight vertices of a given cell and prints their coordinates. It is primarily used for debugging purposes to verify the correctness of cell vertex assignments.

Parameters

[in]	cell	Pointer to a Cell structure representing the cell, containing its vertices.
[in]	rank	MPI rank for identification (useful in parallel environments).

Returns

PetscErrorCode Returns 0 to indicate successful execution. Non-zero on failure.

Note

• Ensure that the cell pointer is not NULL before calling this function..

Definition at line 189 of file logging.c.

{
 
    // Validate input pointers
    if (cell == NULL) {
      LOG_ALLOW(LOCAL,LOG_ERROR, "LOG_CELL_VERTICES - 'cell' is NULL.\n");
        SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_NULL, "LOG_CELL_VERTICES - Input parameter 'cell' is NULL.");
    }
 
      LOG_ALLOW(LOCAL,LOG_DEBUG, "LOG_CELL_VERTICES - Rank %d, Cell Vertices:\n", rank);
        for(int i = 0; i < 8; i++){ 
      LOG_ALLOW(LOCAL,LOG_DEBUG, "  Vertex[%d]: (%.2f, %.2f, %.2f)\n", 
                       i, cell->vertices[i].x, cell->vertices[i].y, cell->vertices[i].z);
        }
 
    return 0; // Indicate successful execution
}

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LOG_FACE_DISTANCES()

PetscErrorCode LOG_FACE_DISTANCES

(

PetscReal *

d

)

Prints the signed distances to each face of the cell.

This function iterates through the six signed distances from a point to each face of a given cell and prints their values. It is primarily used for debugging purposes to verify the correctness of distance calculations.

Parameters

[in]

d

An array of six PetscReal values representing the signed distances. The indices correspond to: d[LEFT]: Left Face d[RIGHT]: Right Face d[BOTTOM]: Bottom Face d[TOP]: Top Face d[FRONT]: Front Face d[BACK]: Back Face

Returns

PetscErrorCode Returns 0 to indicate successful execution. Non-zero on failure.

Note

• Ensure that the d array is correctly populated with signed distances before calling this function.

Definition at line 229 of file logging.c.

{
 
    // Validate input array
    if (d == NULL) {
      LOG_ALLOW(LOCAL,LOG_ERROR, " LOG_FACE_DISTANCES - 'd' is NULL.\n");
        SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_NULL, " LOG_FACE_DISTANCES - Input array 'd' is NULL.");
    }
 
    PetscPrintf(PETSC_COMM_SELF, " LOG_FACE_DISTANCES - Face Distances:\n");
    PetscPrintf(PETSC_COMM_SELF, "  LEFT(%d):   %.15f\n", LEFT, d[LEFT]);
    PetscPrintf(PETSC_COMM_SELF, "  RIGHT(%d):  %.15f\n", RIGHT, d[RIGHT]);
    PetscPrintf(PETSC_COMM_SELF, "  BOTTOM(%d): %.15f\n", BOTTOM, d[BOTTOM]);
    PetscPrintf(PETSC_COMM_SELF, "  TOP(%d):    %.15f\n", TOP, d[TOP]);
    PetscPrintf(PETSC_COMM_SELF, "  FRONT(%d):  %.15f\n", FRONT, d[FRONT]);
    PetscPrintf(PETSC_COMM_SELF, "  BACK(%d):   %.15f\n", BACK, d[BACK]);
 
    return 0; // Indicate successful execution
}

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IntToStr()

static void IntToStr ( int  value, char *  buf, size_t  bufsize  )

static

Definition at line 252 of file logging.c.

{
    snprintf(buf, bufsize, "%d", value);
}

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Int64ToStr()

static void Int64ToStr ( PetscInt64  value, char *  buf, size_t  bufsize  )

static

Definition at line 260 of file logging.c.

{
    snprintf(buf, bufsize, "%ld", value);
}

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CellToStr()

static void CellToStr ( const PetscInt *  cell, char *  buf, size_t  bufsize  )

static

Definition at line 268 of file logging.c.

{
    snprintf(buf, bufsize, "(%d, %d, %d)", cell[0], cell[1], cell[2]);
}

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TripleRealToStr()

static void TripleRealToStr ( const PetscReal *  arr, char *  buf, size_t  bufsize  )

static

Definition at line 276 of file logging.c.

{
    snprintf(buf, bufsize, "(%.4f, %.4f, %.4f)", arr[0], arr[1], arr[2]);
}

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ComputeMaxColumnWidths()

static PetscErrorCode ComputeMaxColumnWidths ( PetscInt  nParticles, const PetscMPIInt *  ranks, const PetscInt64 *  pids, const PetscInt *  cellIDs, const PetscReal *  positions, const PetscReal *  velocities, const PetscReal *  weights, int *  wRank, int *  wPID, int *  wCell, int *  wPos, int *  wVel, int *  wWt  )

static

Definition at line 301 of file logging.c.

{
    char tmp[TMP_BUF_SIZE];
 
    *wRank = strlen("Rank");  /* Start with the header label lengths */
    *wPID  = strlen("PID");
    *wCell = strlen("Cell (i,j,k)");
    *wPos  = strlen("Position (x,y,z)");
    *wVel  = strlen("Velocity (x,y,z)");
    *wWt   = strlen("Weights (a1,a2,a3)");
 
    for (PetscInt i = 0; i < nParticles; i++) {
        /* Rank */
        IntToStr(ranks[i], tmp, TMP_BUF_SIZE);
        if ((int)strlen(tmp) > *wRank) *wRank = (int)strlen(tmp);
 
        /* PID */
        Int64ToStr(pids[i], tmp, TMP_BUF_SIZE);
        if ((int)strlen(tmp) > *wPID) *wPID = (int)strlen(tmp);
 
        /* Cell: use the three consecutive values */
        CellToStr(&cellIDs[3 * i], tmp, TMP_BUF_SIZE);
        if ((int)strlen(tmp) > *wCell) *wCell = (int)strlen(tmp);
 
        /* Position */
        TripleRealToStr(&positions[3 * i], tmp, TMP_BUF_SIZE);
        if ((int)strlen(tmp) > *wPos) *wPos = (int)strlen(tmp);
 
        /* Velocity */
        TripleRealToStr(&velocities[3 * i], tmp, TMP_BUF_SIZE);
        if ((int)strlen(tmp) > *wVel) *wVel = (int)strlen(tmp);
 
        /* Weights */
        TripleRealToStr(&weights[3 * i], tmp, TMP_BUF_SIZE);
        if ((int)strlen(tmp) > *wWt) *wWt = (int)strlen(tmp);
    }
    return 0;
}

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BuildRowFormatString()

static void BuildRowFormatString ( PetscMPIInt  wRank, PetscInt  wPID, PetscInt  wCell, PetscInt  wPos, PetscInt  wVel, PetscInt  wWt, char *  fmtStr, size_t  bufSize  )

static

Definition at line 365 of file logging.c.

{
    // Build a format string using snprintf.
    // We assume that the Rank is an int (%d), PID is a 64-bit int (%ld)
    // and the remaining columns are strings (which have been formatted already).
    snprintf(fmtStr, bufSize,
             "| %%-%dd | %%-%dd | %%-%ds | %%-%ds | %%-%ds | %%-%ds |\n",
             wRank, wPID, wCell, wPos, wVel, wWt);
}

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BuildHeaderString()

static void BuildHeaderString ( char *  headerStr, size_t  bufSize, PetscMPIInt  wRank, PetscInt  wPID, PetscInt  wCell, PetscInt  wPos, PetscInt  wVel, PetscInt  wWt  )

static

Definition at line 378 of file logging.c.

{
    snprintf(headerStr, bufSize,
             "| %-*s | %-*s | %-*s | %-*s | %-*s | %-*s |\n",
             (int)wRank, "Rank",
             (int)wPID, "PID",
             (int)wCell, "Cell (i,j,k)",
             (int)wPos, "Position (x,y,z)",
             (int)wVel, "Velocity (x,y,z)",
             (int)wWt, "Weights (a1,a2,a3)");
}

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LOG_PARTICLE_FIELDS()

PetscErrorCode LOG_PARTICLE_FIELDS	(	UserCtx *	user,
		PetscInt	printInterval
	)

Prints particle fields in a table that automatically adjusts its column widths.

This function retrieves data from the particle swarm and prints a table where the width of each column is determined by the maximum width needed to display the data. Only every 'printInterval'-th particle is printed.

Parameters

[in]	user	Pointer to the UserCtx structure.
[in]	printInterval	Only every printInterval‑th particle is printed.

Returns

PetscErrorCode Returns 0 on success.

Definition at line 402 of file logging.c.

{
    DM swarm = user->swarm;
    PetscErrorCode ierr;
    PetscInt localNumParticles;
    PetscReal *positions = NULL;
    PetscInt64 *particleIDs = NULL;
    PetscMPIInt *particleRanks = NULL;
    PetscInt *cellIDs = NULL;
    PetscReal *weights = NULL;
    PetscReal *velocities = NULL;
    PetscMPIInt rank;
    
    ierr = MPI_Comm_rank(PETSC_COMM_WORLD, &rank); CHKERRQ(ierr);
    LOG_ALLOW(LOCAL,LOG_INFO, "PrintParticleFields - Rank %d is retrieving particle data.\n", rank);
 
    ierr = DMSwarmGetLocalSize(swarm, &localNumParticles); CHKERRQ(ierr);
    LOG_ALLOW(LOCAL,LOG_DEBUG,"PrintParticleFields - Rank %d has %d particles.\n", rank, localNumParticles);
 
    ierr = DMSwarmGetField(swarm, "position", NULL, NULL, (void**)&positions); CHKERRQ(ierr);
    ierr = DMSwarmGetField(swarm, "DMSwarm_pid", NULL, NULL, (void**)&particleIDs); CHKERRQ(ierr);
    ierr = DMSwarmGetField(swarm, "DMSwarm_rank", NULL, NULL, (void**)&particleRanks); CHKERRQ(ierr);
    ierr = DMSwarmGetField(swarm, "DMSwarm_CellID", NULL, NULL, (void**)&cellIDs); CHKERRQ(ierr);
    ierr = DMSwarmGetField(swarm, "weight", NULL, NULL, (void**)&weights); CHKERRQ(ierr);
    ierr = DMSwarmGetField(swarm, "velocity", NULL, NULL, (void**)&velocities); CHKERRQ(ierr);
    
    /* Compute maximum column widths. */
    int wRank, wPID, wCell, wPos, wVel, wWt;
    wRank = wPID = wCell = wPos = wVel = wWt = 0;
    ierr = ComputeMaxColumnWidths(localNumParticles, particleRanks, particleIDs, cellIDs,
                                  positions, velocities, weights,
                                  &wRank, &wPID, &wCell, &wPos, &wVel, &wWt); CHKERRQ(ierr);
 
    /* Build a header string and a row format string. */
    char headerFmt[256];
    char rowFmt[256];
    BuildHeaderString(headerFmt, sizeof(headerFmt), wRank, wPID, wCell, wPos, wVel, wWt);
    BuildRowFormatString(wRank, wPID, wCell, wPos, wVel, wWt, rowFmt, sizeof(rowFmt));
    
    /* Print header (using synchronized printing for parallel output). */
    ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD, "--------------------------------------------------------------------------------------------------------------\n"); CHKERRQ(ierr);
    ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD, "%s", headerFmt); CHKERRQ(ierr);
    ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD, "--------------------------------------------------------------------------------------------------------------\n"); CHKERRQ(ierr);
    
    /* Loop over particles and print every printInterval-th row. */
    char rowStr[256];
    for (PetscInt i = 0; i < localNumParticles; i++) {
        if (i % printInterval == 0) {
      // ------- DEBUG 
      //char cellStr[TMP_BUF_SIZE], posStr[TMP_BUF_SIZE], velStr[TMP_BUF_SIZE], wtStr[TMP_BUF_SIZE];
      //CellToStr(&cellIDs[3*i], cellStr, TMP_BUF_SIZE);
      //TripleRealToStr(&positions[3*i], posStr, TMP_BUF_SIZE);
      //TripleRealToStr(&velocities[3*i], velStr, TMP_BUF_SIZE);
      // TripleRealToStr(&weights[3*i], wtStr, TMP_BUF_SIZE);
            
      // if (rank == 0) { // Or whatever rank is Rank 0
        //PetscPrintf(PETSC_COMM_SELF, "[Rank 0 DEBUG LPF] Particle %lld: PID=%lld, Rank=%d\n", (long long)i, (long long)particleIDs[i], particleRanks[i]);
        //PetscPrintf(PETSC_COMM_SELF, "[Rank 0 DEBUG LPF] Raw Pos: (%.10e, %.10e, %.10e)\n", positions[3*i+0], positions[3*i+1], positions[3*i+2]);
        //PetscPrintf(PETSC_COMM_SELF, "[Rank 0 DEBUG LPF] Str Pos: %s\n", posStr);
        //PetscPrintf(PETSC_COMM_SELF, "[Rank 0 DEBUG LPF] Raw Vel: (%.10e, %.10e, %.10e)\n", velocities[3*i+0], velocities[3*i+1], velocities[3*i+2]);
        // PetscPrintf(PETSC_COMM_SELF, "[Rank 0 DEBUG LPF] Str Vel: %s\n", velStr);
        // Add similar for cell, weights
        // PetscPrintf(PETSC_COMM_SELF, "[Rank 0 DEBUG LPF] About to build rowStr for particle %lld\n", (long long)i);
        //  fflush(stdout);
        // }
 
      //  snprintf(rowStr, sizeof(rowStr), rowFmt,
          //           particleRanks[i],
          //           particleIDs[i],
          //           cellStr,
          //           posStr,
          //           velStr,
      //         wtStr);
 
         
         //    ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD, "%s", rowStr); CHKERRQ(ierr);
      
         // ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD, "%s", rowStr); CHKERRQ(ierr); 
      
      // -------- DEBUG
            /* Format the row by converting each field to a string first.
             * We use temporary buffers and then build the row string.
             */
      
       char cellStr[TMP_BUF_SIZE], posStr[TMP_BUF_SIZE], velStr[TMP_BUF_SIZE], wtStr[TMP_BUF_SIZE];
            CellToStr(&cellIDs[3*i], cellStr, TMP_BUF_SIZE);
            TripleRealToStr(&positions[3*i], posStr, TMP_BUF_SIZE);
            TripleRealToStr(&velocities[3*i], velStr, TMP_BUF_SIZE);
            TripleRealToStr(&weights[3*i], wtStr, TMP_BUF_SIZE);
            
            /* Build the row string. Note that for the integer fields we can use the row format string. */
            snprintf(rowStr, sizeof(rowStr), rowFmt,
                     particleRanks[i],
                     particleIDs[i],
                     cellStr,
                     posStr,
                     velStr,
                     wtStr);
     ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD, "%s", rowStr); CHKERRQ(ierr);
        }
    }
 
 
    ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD, "--------------------------------------------------------------------------------------------------------------\n"); CHKERRQ(ierr);
    ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD, "\n"); CHKERRQ(ierr);
    ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD, PETSC_STDOUT); CHKERRQ(ierr);
 
    LOG_ALLOW_SYNC(GLOBAL,LOG_DEBUG,"PrintParticleFields - Completed printing on Rank %d.\n", rank);
 
    /* Restore fields */
    ierr = DMSwarmRestoreField(swarm, "position", NULL, NULL, (void**)&positions); CHKERRQ(ierr);
    ierr = DMSwarmRestoreField(swarm, "DMSwarm_pid", NULL, NULL, (void**)&particleIDs); CHKERRQ(ierr);
    ierr = DMSwarmRestoreField(swarm, "DMSwarm_rank", NULL, NULL, (void**)&particleRanks); CHKERRQ(ierr);
    ierr = DMSwarmRestoreField(swarm, "DMSwarm_CellID", NULL, NULL, (void**)&cellIDs); CHKERRQ(ierr);
    ierr = DMSwarmRestoreField(swarm, "weight", NULL, NULL, (void**)&weights); CHKERRQ(ierr);
    ierr = DMSwarmRestoreField(swarm, "velocity", NULL, NULL, (void**)&velocities); CHKERRQ(ierr);
 
    LOG_ALLOW(LOCAL,LOG_DEBUG, "PrintParticleFields - Restored all particle fields.\n");
    return 0;
}

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trim()

static void trim ( char *  s )

static

Definition at line 524 of file logging.c.

{
    if (!s) return;
 
    /* ---- 1. strip leading blanks ----------------------------------- */
    char *p = s;
    while (*p && isspace((unsigned char)*p))
        ++p;
 
    if (p != s)                      /* move the trimmed text forward   */
        memmove(s, p, strlen(p) + 1);   /* +1 to copy the final NUL     */
 
    /* ---- 2. strip trailing blanks ---------------------------------- */
    size_t len = strlen(s);
    while (len > 0 && isspace((unsigned char)s[len - 1]))
        s[--len] = '\0';
}

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LoadAllowedFunctionsFromFile()

PetscErrorCode LoadAllowedFunctionsFromFile	(	const char	filename[],
		char ***	funcsOut,
		PetscInt *	nOut
	)

Load function names from a text file.

The file is expected to contain one identifier per line. Blank lines and lines whose first non‑blank character is a # are silently skipped so the file can include comments. Example:

# Allowed function list
main
InitializeSimulation
InterpolateAllFieldsToSwarm  # inline comments are OK, too

The routine allocates memory as needed (growing an internal buffer with PetscRealloc()) and returns the resulting array and its length to the caller. Use FreeAllowedFunctions() to clean up when done.

Parameters

[in]	filename	Path of the configuration file to read.
[out]	funcsOut	On success, points to a freshly‑allocated array of char* (size nOut).
[out]	nOut	Number of valid entries in funcsOut.

Returns

0 on success, or a PETSc error code on failure (e.g. I/O error, OOM).

Definition at line 568 of file logging.c.

{
  FILE          *fp    = NULL;
  char         **funcs = NULL;
  size_t         cap   = 16;   /* initial capacity */
  size_t         n     = 0;    /* number of names  */
  char           line[PETSC_MAX_PATH_LEN];
  PetscErrorCode ierr;
 
  PetscFunctionBegin;
 
  /* ---------------------------------------------------------------------- */
  /* 1. Open file                                                           */
  fp = fopen(filename, "r");
  if (!fp) SETERRQ(PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN,
                    "Cannot open %s", filename);
 
  /* 2. Allocate initial pointer array                                      */
  ierr = PetscMalloc1(cap, &funcs); CHKERRQ(ierr);
 
  /* 3. Read file line by line                                              */
  while (fgets(line, sizeof line, fp)) {
    /* Strip everything after a comment character '#'. */
    char *hash = strchr(line, '#');
    if (hash) *hash = '\0';
 
    trim(line);                 /* remove leading/trailing blanks */
    if (!*line) continue;       /* skip if empty                  */
 
    /* Grow the array if necessary */
    if (n == cap) {
      cap *= 2;
      ierr = PetscRealloc(cap * sizeof(*funcs), (void **)&funcs); CHKERRQ(ierr);
    }
 
    /* Deep‑copy the cleaned identifier */
    ierr = PetscStrallocpy(line, &funcs[n++]); CHKERRQ(ierr);
  }
  fclose(fp);
 
  /* 4. Return results to caller                                           */
  *funcsOut = funcs;
  *nOut     = (PetscInt)n;
 
  PetscFunctionReturn(0);
}

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FreeAllowedFunctions()

PetscErrorCode FreeAllowedFunctions	(	char **	funcs,
		PetscInt	n
	)

Free an array previously returned by LoadAllowedFunctionsFromFile().

Parameters

[in,out]	funcs	Array of strings to release (may be NULL).
[in]	n	Number of entries in funcs. Ignored if funcs is NULL.

Returns

0 on success or a PETSc error code.

Definition at line 627 of file logging.c.

{
  PetscErrorCode ierr;
  PetscFunctionBegin;
  if (funcs) {
    for (PetscInt i = 0; i < n; ++i) {
      ierr = PetscFree(funcs[i]); CHKERRQ(ierr);
    }
    ierr = PetscFree(funcs); CHKERRQ(ierr);
  }
  PetscFunctionReturn(0);
}

BCFaceToString()

const char * BCFaceToString

(

BCFace

face

)

Helper function to convert BCFace enum to a string representation.

Parameters

[in]

face

The BCFace enum value.

Returns

Pointer to a constant string representing the face.

Definition at line 645 of file logging.c.

                                        {
    switch (face) {
        case BC_FACE_NEG_X: return "-Xi (I-Min)";
        case BC_FACE_POS_X: return "+Xi (I-Max)";
        case BC_FACE_NEG_Y: return "-Eta (J-Min)";
        case BC_FACE_POS_Y: return "+Eta (J-Max)";
        case BC_FACE_NEG_Z: return "-Zeta (K-Min)";
        case BC_FACE_POS_Z: return "+Zeta (K-Max)";
        default:            return "Unknown Face";
    }
}

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BCTypeToString()

const char * BCTypeToString

(

BCType

type

)

Helper function to convert BCType enum to a string representation.

Parameters

[in]

type

The BCType enum value.

Returns

Pointer to a constant string representing the BC type.

Definition at line 662 of file logging.c.

                                        {
    switch (type) {
      //  case DIRICHLET: return "DIRICHLET";
      //  case NEUMANN:   return "NEUMANN";
        case WALL:      return "WALL";
        case INLET:     return "INLET";
        case OUTLET:    return "OUTLET";
        case FARFIELD:  return "FARFIELD";
        case PERIODIC:  return "PERIODIC";
        case INTERFACE: return "INTERFACE";
        case NOGRAD:    return "NOGRAD";
 
    // case CUSTOM:    return "CUSTOM";
        default:        return "Unknown BC Type";
    }
}

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BCHandlerTypeToString()

const char * BCHandlerTypeToString

(

BCHandlerType

handler_type

)

Converts a BCHandlerType enum to its string representation.

Provides a descriptive string for a specific boundary condition implementation strategy. This is crucial for logging the exact behavior configured for a face.

Parameters

handler_type

The BCHandlerType enum value (e.g., BC_HANDLER_WALL_NOSLIP).

Returns

A constant character string corresponding to the enum. Returns "UNKNOWN_HANDLER" if the enum value is not recognized.

Definition at line 689 of file logging.c.

                                                              {
    switch (handler_type) {
        // Wall & Symmetry Handlers
        case BC_HANDLER_WALL_NOSLIP:             return "noslip";
        case BC_HANDLER_WALL_MOVING:             return "moving";
        case BC_HANDLER_SYMMETRY_PLANE:          return "symmetry_plane";
 
        // Inlet Handlers
        case BC_HANDLER_INLET_CONSTANT_VELOCITY: return "constant_velocity";
        case BC_HANDLER_INLET_PULSANTILE_FLUX:   return "pulsatile_flux";
        case BC_HANDLER_INLET_PARABOLIC: return "parabolic";
 
        // Outlet Handlers
        case BC_HANDLER_OUTLET_CONSERVATION:     return "conservation";
        case BC_HANDLER_OUTLET_PRESSURE:         return "pressure";
 
        // Other Physical Handlers
        case BC_HANDLER_FARFIELD_NONREFLECTING:  return "nonreflecting";
        case BC_HANDLER_NOGRAD_COPY_GHOST: return "no_gradient";
 
        // Multi-Block / Interface Handlers
        case BC_HANDLER_PERIODIC:                return "periodic";
        case BC_HANDLER_INTERFACE_OVERSET:       return "overset";
 
        // Default case
        case BC_HANDLER_UNDEFINED:
        default:                                 return "UNKNOWN_HANDLER";
    }
}

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DualMonitorDestroy()

PetscErrorCode DualMonitorDestroy

(

void **

ctx

)

Destroys the DualMonitorCtx.

This function is passed to KSPMonitorSet to ensure the viewer is properly destroyed and the context memory is freed when the KSP is destroyed.

Parameters

Ctx	a pointer to the context pointer to be destroyed

Returns

PetscErrorCode

Definition at line 727 of file logging.c.

{
    DualMonitorCtx *monctx = (DualMonitorCtx*)*ctx;
    PetscErrorCode ierr;
    PetscMPIInt    rank;
    
    PetscFunctionBeginUser;
    ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank); CHKERRQ(ierr);
    if(!rank && monctx->file_handle){
      fclose(monctx->file_handle);
    }
    
    ierr = PetscFree(monctx); CHKERRQ(ierr);
    *ctx = NULL;
    PetscFunctionReturn(0);
}

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DualKSPMonitor()

PetscErrorCode DualKSPMonitor	(	KSP	ksp,
		PetscInt	it,
		PetscReal	rnorm,
		void *	ctx
	)

A custom KSP monitor that logs to a file and optionally to the console.

This function unconditionally calls the standard true residual monitor to log to a file viewer provided in the context. It also checks a flag in the context and, if true, calls the monitor again to log to standard output.

Parameters

ksp	The Krylov subspace context.
it	The current iteration number.
rnorm	The preconditioned residual norm.
ctx	A pointer to the DualMonitorCtx structure.

Returns

PetscErrorCode 0 on success.

Definition at line 759 of file logging.c.

{
    DualMonitorCtx *monctx = (DualMonitorCtx*)ctx;
    PetscErrorCode ierr;
    PetscReal      trnorm, relnorm;
    Vec            r;
    char           norm_buf[256];
    PetscMPIInt    rank;
 
    PetscFunctionBeginUser;
    ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank); CHKERRQ(ierr);
 
    // 1. Calculate the true residual norm.
    ierr = KSPBuildResidual(ksp, NULL, NULL, &r); CHKERRQ(ierr);
    ierr = VecNorm(r, NORM_2, &trnorm); CHKERRQ(ierr);
 
    // 2. On the first iteration, compute and store the norm of the RHS vector `b`.
    if (it == 0) {
        Vec b;
        ierr = KSPGetRhs(ksp, &b); CHKERRQ(ierr);
        ierr = VecNorm(b, NORM_2, &monctx->bnorm); CHKERRQ(ierr);
    }
 
    if(!rank){
    // 3. Compute the relative norm and format the output string.
    if (monctx->bnorm > 1.e-15) {
      relnorm = trnorm / monctx->bnorm;
      sprintf(norm_buf, "ts: %-5d | block: %-2d | iter: %-3d | Unprecond Norm: %12.5e | True Norm: %12.5e | Rel Norm: %12.5e",(int)monctx->step, (int)monctx->block_id, (int)it, (double)rnorm, (double)trnorm, (double)relnorm);
    } else {
      sprintf(norm_buf,"ts: %-5d | block: %-2d | iter: %-3d | Unprecond Norm: %12.5e | True Norm: %12.5e",(int)monctx->step, (int)monctx->block_id, (int)it, (double)rnorm, (double)trnorm);
    }
 
    // 4. Log to the file viewer (unconditionally).
    if(monctx->file_handle){
      ierr = PetscFPrintf(PETSC_COMM_SELF,monctx->file_handle,"%s\n", norm_buf); CHKERRQ(ierr);
    }
    // 5. Log to the console (conditionally).
    if (monctx->log_to_console) {
      PetscFPrintf(PETSC_COMM_SELF,stdout, "%s\n", norm_buf); CHKERRQ(ierr);
    }
 
    } //rank
 
    PetscFunctionReturn(0);
}

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LOG_CONTINUITY_METRICS()

PetscErrorCode LOG_CONTINUITY_METRICS

(

UserCtx *

user

)

Logs continuity metrics for a single block to a file.

This function should be called for each block, once per timestep. It opens a central log file in append mode. To ensure the header is written only once, it checks if it is processing block 0 on the simulation's start step.

Parameters

user	A pointer to the UserCtx for the specific block whose metrics are to be logged. The function accesses both global (SimCtx) and local (user->...) data.

Returns

PetscErrorCode 0 on success.

Definition at line 819 of file logging.c.

{
    PetscErrorCode ierr;
    PetscMPIInt    rank;
    SimCtx         *simCtx = user->simCtx;      // Get the shared SimCtx
    const PetscInt bi = user->_this;          // Get this block's specific ID
    const PetscInt ti = simCtx->step;         // Get the current timestep
 
    PetscFunctionBeginUser;
    ierr = MPI_Comm_rank(PETSC_COMM_WORLD, &rank); CHKERRQ(ierr);
 
    // Only rank 0 performs file I/O.
    if (!rank) {
        FILE *f;
        char filen[128];
        sprintf(filen, "logs/Continuity_Metrics.log");
 
        // Open the log file in append mode.
        f = fopen(filen, "a");
        if (!f) {
            SETERRQ(PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Cannot open log file: %s", filen);
        }
 
        // Write a header only for the very first block (bi=0) on the very
        // first timestep (ti=StartStep). This ensures it's written only once.
        if (ti == simCtx->StartStep && bi == 0) {
            PetscFPrintf(PETSC_COMM_SELF, f, "%-10s | %-6s | %-18s | %-30s | %-18s | %-18s | %-18s | %-18s\n",
                         "Timestep", "Block", "Max Divergence", "Max Divergence Location ([k][j][i]=idx)", "Sum(RHS)","Total Flux In", "Total Flux Out", "Net Flux");
            PetscFPrintf(PETSC_COMM_SELF, f, "------------------------------------------------------------------------------------------------------------------------------------------\n");
        }
 
        // Prepare the data strings and values for the current block.
        PetscReal net_flux = simCtx->FluxInSum - simCtx->FluxOutSum;
        char location_str[64];
        sprintf(location_str, "([%d][%d][%d] = %d)", (int)simCtx->MaxDivz, (int)simCtx->MaxDivy, (int)simCtx->MaxDivx, (int)simCtx->MaxDivFlatArg);
 
        // Write the formatted line for the current block.
        PetscFPrintf(PETSC_COMM_SELF, f, "%-10d | %-6d | %-18.10e | %-39s | %-18.10e | %-18.10e | %-18.10e | %-18.10e\n",
                     (int)ti,
                     (int)bi,
                     (double)simCtx->MaxDiv,
                     location_str,
                     (double)simCtx->summationRHS,
             (double)simCtx->FluxInSum,
                     (double)simCtx->FluxOutSum,
                     (double)net_flux);
 
        fclose(f);
    }
 
    PetscFunctionReturn(0);
}

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ParticleLocationStatusToString()

const char * ParticleLocationStatusToString

(

ParticleLocationStatus

level

)

A function that outputs the name of the current level in the ParticleLocation enum.

Parameters

level

The ParticleLocation enum value.

Returns

A constant character string corresponding to the enum. Returns "UNKNOWN_LEVEL" if the enum value is not recognized.

Definition at line 878 of file logging.c.

{
    switch (level) {
        case NEEDS_LOCATION:        return "NEEDS_LOCATION";
        case ACTIVE_AND_LOCATED: return "ACTIVE_AND_LOCATED";
        case MIGRATING_OUT:     return "MIGRATING_OUT";
        case LOST:               return "LOST";
        case UNINITIALIZED:      return "UNINITIALIZED";
        default:            return "UNKNOWN_LEVEL";
    }
}

_FindOrCreateEntry()

static PetscErrorCode _FindOrCreateEntry ( const char *  func_name, PetscInt *  idx  )

static

Definition at line 909 of file logging.c.

{
    PetscFunctionBeginUser;
    // Search for existing entry
    for (PetscInt i = 0; i < g_profiler_count; ++i) {
        if (strcmp(g_profiler_registry[i].name, func_name) == 0) {
            *idx = i;
            PetscFunctionReturn(0);
        }
    }
 
    // Not found, create a new entry
    if (g_profiler_count >= g_profiler_capacity) {
        PetscInt new_capacity = g_profiler_capacity == 0 ? 16 : g_profiler_capacity * 2;
        PetscErrorCode ierr = PetscRealloc(sizeof(ProfiledFunction) * new_capacity, &g_profiler_registry); CHKERRQ(ierr);
        g_profiler_capacity = new_capacity;
    }
 
    *idx = g_profiler_count;
    g_profiler_registry[*idx].name = func_name;
    g_profiler_registry[*idx].total_time = 0.0;
    g_profiler_registry[*idx].current_step_time = 0.0;
    g_profiler_registry[*idx].total_call_count = 0;
    g_profiler_registry[*idx].current_step_call_count = 0;
    g_profiler_registry[*idx].start_time = 0.0;
    g_profiler_registry[*idx].always_log = PETSC_FALSE;
    g_profiler_count++;
 
    PetscFunctionReturn(0);
}

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ProfilingInitialize()

PetscErrorCode ProfilingInitialize

(

SimCtx *

simCtx

)

Initializes the custom profiling system using configuration from SimCtx.

This function sets up the internal data structures for tracking function performance. It reads the list of "critical functions" from the provided SimCtx and marks them for per-step logging at LOG_INFO level.

It should be called once at the beginning of the application, after CreateSimulationContext() but before the main time loop.

Parameters

simCtx

The master simulation context, which contains the list of critical function names to always log.

Returns

PetscErrorCode

Definition at line 955 of file logging.c.

{
    PetscFunctionBeginUser;
    if (!simCtx) SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_NULL, "SimCtx cannot be null for ProfilingInitialize");
 
    // Iterate through the list of critical functions provided in SimCtx
    for (PetscInt i = 0; i < simCtx->nCriticalFuncs; ++i) {
        PetscInt idx;
        const char *func_name = simCtx->criticalFuncs[i];
        PetscErrorCode ierr = _FindOrCreateEntry(func_name, &idx); CHKERRQ(ierr);
        g_profiler_registry[idx].always_log = PETSC_TRUE;
 
        LOG_ALLOW(GLOBAL, LOG_DEBUG, "Marked '%s' as a critical function for profiling.\n", func_name);
    }
    PetscFunctionReturn(0);
}

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_ProfilingStart()

void _ProfilingStart

(

const char *

func_name

)

Definition at line 972 of file logging.c.

{
    PetscInt idx;
    if (_FindOrCreateEntry(func_name, &idx) != 0) return; // Fail silently
    PetscTime(&g_profiler_registry[idx].start_time);
}

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_ProfilingEnd()

void _ProfilingEnd

(

const char *

func_name

)

Definition at line 979 of file logging.c.

{
    double end_time;
    PetscTime(&end_time);
 
    PetscInt idx;
    if (_FindOrCreateEntry(func_name, &idx) != 0) return; // Fail silently
 
    double elapsed = end_time - g_profiler_registry[idx].start_time;
    g_profiler_registry[idx].total_time += elapsed;
    g_profiler_registry[idx].current_step_time += elapsed;
    g_profiler_registry[idx].total_call_count++;
    g_profiler_registry[idx].current_step_call_count++;
}

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ProfilingLogTimestepSummary()

PetscErrorCode ProfilingLogTimestepSummary

(

PetscInt

step

)

Logs the performance summary for the current timestep and resets timers.

Depending on the current log level, this function will print:

• LOG_PROFILE: Timings for ALL functions called during the step.
• LOG_INFO/LOG_DEBUG: Timings for only the "always log" functions.

It must be called once per timestep, typically at the end of the main loop. After logging, it resets the per-step counters and timers.

Parameters

step	The current simulation step number, for logging context.

Returns

PetscErrorCode

Definition at line 994 of file logging.c.

{
    LogLevel log_level = get_log_level();
    PetscBool should_print = PETSC_FALSE;
 
    PetscFunctionBeginUser;
 
    // Decide if we should print anything at all
    if (log_level >= LOG_INFO) {
        for (PetscInt i = 0; i < g_profiler_count; ++i) {
            if (g_profiler_registry[i].current_step_call_count > 0) {
                 if (log_level == LOG_PROFILE || g_profiler_registry[i].always_log) {
                    should_print = PETSC_TRUE;
                    break;
                 }
            }
        }
    }
    
    if (should_print) {
        PetscPrintf(MPI_COMM_WORLD, "[PROFILE] ----- Timestep %d Summary -----\n", step);
        for (PetscInt i = 0; i < g_profiler_count; ++i) {
            if (g_profiler_registry[i].current_step_call_count > 0) {
                if (log_level == LOG_PROFILE || g_profiler_registry[i].always_log) {
                    PetscPrintf(MPI_COMM_WORLD, "[PROFILE]   %-25s: %.6f s (%lld calls)\n",
                                g_profiler_registry[i].name,
                                g_profiler_registry[i].current_step_time,
                                g_profiler_registry[i].current_step_call_count);
                }
            }
        }
    }
 
    // Reset per-step counters for the next iteration
    for (PetscInt i = 0; i < g_profiler_count; ++i) {
        g_profiler_registry[i].current_step_time = 0.0;
        g_profiler_registry[i].current_step_call_count = 0;
    }
    PetscFunctionReturn(0);
}

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_CompareProfiledFunctions()

static int _CompareProfiledFunctions ( const void *  a, const void *  b  )

static

Definition at line 1036 of file logging.c.

{
    const ProfiledFunction *func_a = (const ProfiledFunction *)a;
    const ProfiledFunction *func_b = (const ProfiledFunction *)b;
 
    if (func_a->total_time < func_b->total_time) return 1;
    if (func_a->total_time > func_b->total_time) return -1;
    return 0;
}

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ProfilingFinalize()

PetscErrorCode ProfilingFinalize

(

void

)

Prints the final, cumulative performance summary and cleans up resources.

This should be called once at the end of the simulation, before PetscFinalize(). It prints a table with total time, call count, and average time per call for every function that was profiled. This summary is only printed if the log level is LOG_PROFILE.

Returns

PetscErrorCode

Definition at line 1046 of file logging.c.

{
    PetscFunctionBeginUser;
    if (get_log_level() >= LOG_PROFILE) {
        
        // --- Step 1: Sort the data for readability ---
        qsort(g_profiler_registry, g_profiler_count, sizeof(ProfiledFunction), _CompareProfiledFunctions);
 
        // --- Step 2: Dynamically determine the width for the function name column ---
        PetscInt max_name_len = strlen("Function"); // Start with the header's length
        for (PetscInt i = 0; i < g_profiler_count; ++i) {
            if (g_profiler_registry[i].total_call_count > 0) {
                PetscInt len = strlen(g_profiler_registry[i].name);
                if (len > max_name_len) {
                    max_name_len = len;
                }
            }
        }
        // Add a little padding
        max_name_len += 2; 
 
        // --- Step 3: Define fixed widths for numeric columns for consistent alignment ---
        const int time_width = 18;
        const int count_width = 15;
        const int avg_width = 22;
 
        // --- Step 4: Print the formatted table ---
        PetscPrintf(MPI_COMM_WORLD, "\n=======================================================================================\n");
        PetscPrintf(MPI_COMM_WORLD, "                         FINAL PROFILING SUMMARY (Sorted by Total Time)\n");
        PetscPrintf(MPI_COMM_WORLD, "=======================================================================================\n");
        
        // Header Row
        PetscPrintf(MPI_COMM_WORLD, "%-*s | %-*s | %-*s | %-*s\n",
                    max_name_len, "Function",
                    time_width, "Total Time (s)",
                    count_width, "Call Count",
                    avg_width, "Avg. Time/Call (ms)");
        
        // Separator Line (dynamically sized)
        for (int i = 0; i < max_name_len; i++) PetscPrintf(MPI_COMM_WORLD, "-");
        PetscPrintf(MPI_COMM_WORLD, "-|-");
        for (int i = 0; i < time_width; i++) PetscPrintf(MPI_COMM_WORLD, "-");
        PetscPrintf(MPI_COMM_WORLD, "-|-");
        for (int i = 0; i < count_width; i++) PetscPrintf(MPI_COMM_WORLD, "-");
        PetscPrintf(MPI_COMM_WORLD, "-|-");
        for (int i = 0; i < avg_width; i++) PetscPrintf(MPI_COMM_WORLD, "-");
        PetscPrintf(MPI_COMM_WORLD, "\n");
 
        // Data Rows
        for (PetscInt i = 0; i < g_profiler_count; ++i) {
            if (g_profiler_registry[i].total_call_count > 0) {
                double avg_time_ms = (g_profiler_registry[i].total_time / g_profiler_registry[i].total_call_count) * 1000.0;
                PetscPrintf(MPI_COMM_WORLD, "%-*s | %*.*f | %*lld | %*.*f\n",
                            max_name_len, g_profiler_registry[i].name,
                            time_width, 6, g_profiler_registry[i].total_time,
                            count_width, g_profiler_registry[i].total_call_count,
                            avg_width, 6, avg_time_ms);
            }
        }
        PetscPrintf(MPI_COMM_WORLD, "=======================================================================================\n");
    }
 
    // --- Final Cleanup ---
    PetscFree(g_profiler_registry);
    g_profiler_registry = NULL;
    g_profiler_count = 0;
    g_profiler_capacity = 0;
    PetscFunctionReturn(0);
}

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Variable Documentation

current_log_level

LogLevel current_log_level = -1

static

Static variable to cache the current logging level.

Initialized to -1 to indicate that the log level has not been set yet.

Definition at line 14 of file logging.c.

gAllowedFunctions

char** gAllowedFunctions = NULL

static

Global/static array of function names allowed to log.

Definition at line 21 of file logging.c.

gNumAllowed

int gNumAllowed = 0

static

Number of entries in the gAllowedFunctions array.

Definition at line 26 of file logging.c.

EVENT_Individualwalkingsearch

PetscLogEvent EVENT_Individualwalkingsearch = 0

Definition at line 33 of file logging.c.

EVENT_walkingsearch

PetscLogEvent EVENT_walkingsearch = 0

Definition at line 34 of file logging.c.

EVENT_GlobalParticleLocation

PetscLogEvent EVENT_GlobalParticleLocation = 0

Definition at line 35 of file logging.c.

EVENT_IndividualLocation

PetscLogEvent EVENT_IndividualLocation = 0

Definition at line 36 of file logging.c.

g_profiler_registry

ProfiledFunction* g_profiler_registry = NULL

static

Definition at line 904 of file logging.c.

g_profiler_count

PetscInt g_profiler_count = 0

static

Definition at line 905 of file logging.c.

g_profiler_capacity

PetscInt g_profiler_capacity = 0

static

Definition at line 906 of file logging.c.