mirror of
https://github.com/HDFGroup/hdf5.git
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6a982a7690
Last changes had caused problems with Windows platform: 1. H5private.h in io_timer.h is not accessible in the distributed shared library of tools. Need to move it to io_timer.c. 2. debug_start_stop_time() would not be available outside of h5perf. Some favor of compiler does not like it. Screened it out for now. 3. mere "extern" is not good enough for Windows shared library. Must mark them as DLL. Need to mark them as "H5TOOLS_DLL". 4. STANDALONE mode is broken. Screened out the code for now. Tested; h5committest.
233 lines
7.3 KiB
C
233 lines
7.3 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/* changes:
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* rename pio_timer.c as io_timer.c;
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* Removed pio_perf.h so that it is not dependant on it;
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* Removed set_timer_type() and get_timer_type() since no one calls them;
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* Merged sio_timer.c into io_timer.c;
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*/
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/*
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* Purpose:
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*
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* This is a module of useful timing functions for performance testing.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "H5private.h"
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#include "hdf5.h"
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#ifdef H5_HAVE_PARALLEL
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#include <mpi.h>
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#endif
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#include "io_timer.h"
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/*
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* The number to divide the tv_usec field with to get a nice decimal to add to
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* the number of seconds.
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*/
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#define MICROSECOND 1000000.0
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/* global variables */
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io_time_t *timer_g; /* timer: global for stub functions */
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/*
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* Function: sub_time
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* Purpose: Struct two time values, and return the difference, in microseconds
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*
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* Note that the function assumes that a > b
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* Programmer: Leon Arber, 1/27/06
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*/
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static double sub_time(struct timeval* a, struct timeval* b)
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{
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return (((double)a->tv_sec +
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((double)a->tv_usec) / MICROSECOND) -
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((double)b->tv_sec +
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((double)b->tv_usec) / MICROSECOND));
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}
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/*
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* Function: io_time_new
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* Purpose: Build us a brand, spankin', new performance time object.
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* The object is a black box to the user. They just tell us
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* what type of timer they want (MPI_CLOCK for MPI_Wtime or
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* SYS_CLOCK for system time).
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* Return: Pointer to io_time object
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* Programmer: Bill Wendling, 01. October 2001
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* Modifications:
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*/
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io_time_t *
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io_time_new(clock_type type)
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{
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io_time_t *pt = (io_time_t *)HDcalloc(1, sizeof(struct io_time_t));
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/* set global timer variable */
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timer_g = pt;
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pt->type = type;
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return pt;
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}
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/*
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* Function: io_time_destroy
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* Purpose: Remove the memory allocated for the io_time object. Only
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* need to call on a pointer allocated with the ``io_time_new''
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* function.
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* Return: Nothing
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* Programmer: Bill Wendling, 01. October 2001
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* Modifications:
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*/
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void
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io_time_destroy(io_time_t *pt)
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{
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HDfree(pt);
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/* reset the global timer pointer too. */
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timer_g = NULL;
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}
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#if 0
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/* no one is calling set_timer_type or get_timer_type ???*/
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/*
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* Function: set_timer_type
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* Purpose: Set the type of the timer to either MPI_CLOCK or SYS_CLOCK.
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* This really only needs to be called if you didn't construct a
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* timer with the pio_timer_new function (shame!).
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* Return: Nothing
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* Programmer: Bill Wendling, 04. October 2001
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* Modifications:
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*/
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void
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set_timer_type(io_time_t *pt, clock_type type)
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{
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pt->type = type;
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}
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/*
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* Function: get_timer_type
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* Purpose: Get the type of the timer.
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* Return: MPI_CLOCK or SYS_CLOCK.
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* Programmer: Bill Wendling, 04. October 2001
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* Modifications:
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*/
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clock_type
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get_timer_type(io_time_t *pt)
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{
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return pt->type;
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}
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#endif
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/*
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* Function: set_time
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* Purpose: Set the time in a ``io_time_t'' object.
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* Return: Pointer to the passed in ``io_time_t'' object if SUCCEED; Null otherwise.
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* Programmer: Bill Wendling, 01. October 2001
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* Modifications:
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*/
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io_time_t *
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set_time(io_time_t *pt, timer_type t, int start_stop)
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{
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/* sanity check */
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assert(pt);
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switch(pt->type){
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#ifdef H5_HAVE_PARALLEL
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case MPI_CLOCK:
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if (start_stop == TSTART) {
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pt->mpi_timer[t] = MPI_Wtime();
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/* When we start the timer for HDF5_FINE_WRITE_FIXED_DIMS or HDF5_FINE_READ_FIXED_DIMS
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* we compute the time it took to only open the file */
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if(t == HDF5_FINE_WRITE_FIXED_DIMS)
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pt->total_time[HDF5_FILE_WRITE_OPEN] += pt->mpi_timer[t] - pt->mpi_timer[HDF5_GROSS_WRITE_FIXED_DIMS];
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else if(t == HDF5_FINE_READ_FIXED_DIMS)
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pt->total_time[HDF5_FILE_READ_OPEN] += pt->mpi_timer[t] - pt->mpi_timer[HDF5_GROSS_READ_FIXED_DIMS];
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} else {
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pt->total_time[t] += MPI_Wtime() - pt->mpi_timer[t];
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pt->mpi_timer[t] = MPI_Wtime();
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/* When we stop the timer for HDF5_GROSS_WRITE_FIXED_DIMS or HDF5_GROSS_READ_FIXED_DIMS
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* we compute the time it took to close the file after the last read/write finished */
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if(t == HDF5_GROSS_WRITE_FIXED_DIMS)
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pt->total_time[HDF5_FILE_WRITE_CLOSE] += pt->mpi_timer[t] - pt->mpi_timer[HDF5_FINE_WRITE_FIXED_DIMS];
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else if(t == HDF5_GROSS_READ_FIXED_DIMS)
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pt->total_time[HDF5_FILE_READ_CLOSE] += pt->mpi_timer[t] - pt->mpi_timer[HDF5_FINE_READ_FIXED_DIMS];
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}
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break;
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#endif /* H5_HAVE_PARALLEL */
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case SYS_CLOCK:
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if (start_stop == TSTART) {
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HDgettimeofday(&pt->sys_timer[t], NULL);
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/* When we start the timer for HDF5_FINE_WRITE_FIXED_DIMS or HDF5_FINE_READ_FIXED_DIMS
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* we compute the time it took to only open the file */
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if(t == HDF5_FINE_WRITE_FIXED_DIMS)
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pt->total_time[HDF5_FILE_WRITE_OPEN] += sub_time(&(pt->sys_timer[t]), &(pt->sys_timer[HDF5_GROSS_WRITE_FIXED_DIMS]));
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else if(t == HDF5_FINE_READ_FIXED_DIMS)
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pt->total_time[HDF5_FILE_READ_OPEN] += sub_time(&(pt->sys_timer[t]), &(pt->sys_timer[HDF5_GROSS_READ_FIXED_DIMS]));
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} else {
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struct timeval sys_t;
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HDgettimeofday(&sys_t, NULL);
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pt->total_time[t] += sub_time(&sys_t, &(pt->sys_timer[t]));
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/* When we stop the timer for HDF5_GROSS_WRITE_FIXED_DIMS or HDF5_GROSS_READ_FIXED_DIMS
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* we compute the time it took to close the file after the last read/write finished */
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if(t == HDF5_GROSS_WRITE_FIXED_DIMS)
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pt->total_time[HDF5_FILE_WRITE_CLOSE] += sub_time(&(pt->sys_timer[t]), &(pt->sys_timer[HDF5_FINE_WRITE_FIXED_DIMS]));
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else if(t == HDF5_GROSS_READ_FIXED_DIMS)
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pt->total_time[HDF5_FILE_READ_CLOSE] += sub_time(&(pt->sys_timer[t]), &(pt->sys_timer[HDF5_FINE_READ_FIXED_DIMS]));
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}
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break;
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default:
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HDfprintf(stderr, "Unknown time clock type (%d)\n", pt->type);
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return (NULL);
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break;
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}
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#if 0
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/* this does not belong here. Need fix in h5perf code when set_time() is called. -AKC- */
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debug_start_stop_time(pt, t, start_stop);
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#endif
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return pt;
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}
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/*
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* Function: get_time
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* Purpose: Get the time from a ``io_time_t'' object.
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* Return: The number of seconds as a DOUBLE.
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* Programmer: Bill Wendling, 01. October 2001
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* Modifications:
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*/
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double
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get_time(io_time_t *pt, timer_type t)
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{
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return pt->total_time[t];
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}
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#if 0
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/* standalone is not working yet. Need fix later. -AKC- */
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#ifdef STANDALONE
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#include "pio_standalone.c"
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#endif
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#endif
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