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https://github.com/HDFGroup/hdf5.git
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c9782c380b
Purpose: Feature Fix Description: Changed so the "pio_perf" module handles creating and destroying the MPI Comm. Worked it so we get the minimum, maximum, and average times over a set of iterations. Solution: Lots. Had to pull the MPI Comm code from the "pio_engine" module and place it in the "pio_perf" module. Then worked on a way to have all processes send their time output to process 0, who collects it and gives back the min, max, and avg times for the iterations. Platforms tested: Linux. Doesn't work if you use more than 1 processor...*hrmph*
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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* Copyright (C) 2001
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* National Center for Supercomputing Applications
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* All rights reserved.
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*
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*/
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#ifndef PIO_TIMER__
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#define PIO_TIMER__
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#include "hdf5.h"
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#if defined(H5_TIME_WITH_SYS_TIME)
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# include <sys/time.h>
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# include <time.h>
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#elif defined(H5_HAVE_SYS_TIME_H)
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# include <sys/time.h>
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#else
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# include <time.h>
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#endif
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/* The different types of timers we can have */
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typedef enum timer_type_ {
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HDF5_FILE_OPENCLOSE,
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HDF5_DATASET_CREATE,
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HDF5_FINE_WRITE_FIXED_DIMS,
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HDF5_FINE_READ_FIXED_DIMS,
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HDF5_GROSS_WRITE_FIXED_DIMS,
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HDF5_GROSS_READ_FIXED_DIMS,
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NUM_TIMERS
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} timer_type;
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/* Miscellaneous identifiers */
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enum {
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MPI_TIMER = 0, /* Use MPI timer to measure time */
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SYS_TIMER = 1, /* Use system clock to measure time */
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START, /* Start a specified timer */
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STOP /* Stop a specified timer */
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};
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/* The performance time structure */
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typedef struct pio_time_ {
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unsigned int type : 1;
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double total_time[NUM_TIMERS];
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double mpi_timer[NUM_TIMERS];
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struct timeval sys_timer[NUM_TIMERS];
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} pio_time;
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/* External function declarations */
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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extern pio_time *pio_time_new(unsigned int);
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extern void pio_time_destroy(pio_time *pt);
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extern void set_timer_type(pio_time *pt, timer_type type);
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extern timer_type get_timer_type(pio_time *pt);
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extern pio_time *set_time(pio_time *pt, timer_type t, int start_stop);
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extern double get_time(pio_time *pt, timer_type t);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* PIO_TIMER__ */
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