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-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright by The HDF Group. *
- * Copyright by the Board of Trustees of the University of Illinois. *
- * All rights reserved. *
- * *
- * This file is part of HDF5. The full HDF5 copyright notice, including *
- * terms governing use, modification, and redistribution, is contained in *
- * the files COPYING and Copyright.html. COPYING can be found at the root *
- * of the source code distribution tree; Copyright.html can be found at the *
- * root level of an installed copy of the electronic HDF5 document set and *
- * is linked from the top-level documents page. It can also be found at *
- * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
- * access to either file, you may request a copy from help@hdfgroup.org. *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include "H5private.h"
-#include "h5diff.h"
-#include "ph5diff.h"
-#include "h5diff_common.h"
-#include "h5tools.h"
-#include "h5tools_utils.h"
-
-/* Name of tool */
-#define PROGRAMNAME "h5diff"
-
-static void ph5diff_worker(int );
-
-/*-------------------------------------------------------------------------
- * Function: main
- *
- * Purpose: ph5diff main program
- *
- * Return: An exit status of 0 means no differences were found, 1 means some
- * differences were found.
- *
- * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
- *
- * Date: May 9, 2003
- *
- * Comments:
- *
- * This function drives the diff process and will do a serial or parallel diff depending
- * on the value of the global variable g_Parallel (default is 0), set to 1 when the program
- * is run as "ph5diff"
- *-------------------------------------------------------------------------
- */
-
-int main(int argc, const char *argv[])
-{
- int nID = 0;
- const char *fname1 = NULL;
- const char *fname2 = NULL;
- const char *objname1 = NULL;
- const char *objname2 = NULL;
- diff_opt_t options;
-
- h5tools_setprogname(PROGRAMNAME);
- h5tools_setstatus(EXIT_SUCCESS);
-
- /* Initialize h5tools lib */
- h5tools_init();
-
- outBuffOffset = 0;
- g_Parallel = 1;
-
- MPI_Init(&argc, (char***) &argv);
-
- MPI_Comm_rank(MPI_COMM_WORLD, &nID);
- MPI_Comm_size(MPI_COMM_WORLD, &g_nTasks);
-
- if(g_nTasks == 1)
- {
- printf("Only 1 task available...doing serial diff\n");
-
- g_Parallel = 0;
-
- parse_command_line(argc, argv, &fname1, &fname2, &objname1, &objname2, &options);
-
- h5diff(fname1, fname2, objname1, objname2, &options);
-
- print_info(&options);
- }
- /* Parallel h5diff */
- else {
-
- /* Have the manager process the command-line */
- if(nID == 0)
- {
- parse_command_line(argc, argv, &fname1, &fname2, &objname1, &objname2, &options);
-
- h5diff(fname1, fname2, objname1, objname2, &options);
-
- MPI_Barrier(MPI_COMM_WORLD);
-
- print_info(&options);
- print_manager_output();
- }
- /* All other tasks become workers and wait for assignments. */
- else {
- ph5diff_worker(nID);
-
- MPI_Barrier(MPI_COMM_WORLD);
- } /* end else */
-
- } /* end else */
-
- MPI_Finalize();
-
- return 0;
-}
-
-/*-------------------------------------------------------------------------
- * Function: ph5diff_worker
- *
- * Purpose: worker process of ph5diff
- *
- * Return: none
- *
- * Programmer: Leon Arber
- * Date: January 2005
- *
- * Comments:
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static void
-ph5diff_worker(int nID)
-{
- hid_t file1_id = -1, file2_id = -1;
-
- while(1)
- {
- MPI_Status Status;
-
- MPI_Probe(0, MPI_ANY_TAG, MPI_COMM_WORLD, &Status);
-
- /* Check for filenames */
- if(Status.MPI_TAG == MPI_TAG_PARALLEL)
- {
- char filenames[2][MAX_FILENAME];
-
- /* Retrieve filenames */
- MPI_Recv(filenames, MAX_FILENAME*2, MPI_CHAR, 0, MPI_ANY_TAG, MPI_COMM_WORLD, &Status);
-
- /* disable error reporting */
- H5E_BEGIN_TRY
- {
- /* Open the files */
- if ((file1_id = H5Fopen (filenames[0], H5F_ACC_RDONLY, H5P_DEFAULT)) < 0)
- {
- printf ("h5diff Task [%d]: <%s>: unable to open file\n", nID, filenames[0]);
- MPI_Abort(MPI_COMM_WORLD, 0);
- }
- if ((file2_id = H5Fopen (filenames[1], H5F_ACC_RDONLY, H5P_DEFAULT)) < 0)
- {
- printf ("h5diff Task [%d]: <%s>: unable to open file\n", nID, filenames[1]);
- MPI_Abort(MPI_COMM_WORLD, 0);
- }
- /* enable error reporting */
- }
- H5E_END_TRY;
- }
- /* Check for work */
- else if(Status.MPI_TAG == MPI_TAG_ARGS)
- {
- struct diff_mpi_args args;
- struct diffs_found diffs;
- int i;
-
- /* Make certain we've received the filenames and opened the files already */
- if(file1_id < 0 || file2_id < 0)
- {
- printf("ph5diff_worker: ERROR: work received before/without filenames\n");
- break;
- }
-
- /* Recv parameters for diff from manager task */
- MPI_Recv(&args, sizeof(args), MPI_BYTE, 0, MPI_TAG_ARGS, MPI_COMM_WORLD, &Status);
-
- /* Do the diff */
- diffs.nfound = diff(file1_id, args.name1, file2_id, args.name2, &(args.options), &(args.argdata));
- diffs.not_cmp = args.options.not_cmp;
-
- /* If print buffer has something in it, request print token.*/
- if(outBuffOffset>0)
- {
- MPI_Send(NULL, 0, MPI_BYTE, 0, MPI_TAG_TOK_REQUEST, MPI_COMM_WORLD);
-
- /* Wait for print token. */
- MPI_Recv(NULL, 0, MPI_BYTE, 0, MPI_TAG_PRINT_TOK, MPI_COMM_WORLD, &Status);
-
- /* When get token, send all of our output to the manager task and then return the token */
- for(i=0; i<outBuffOffset; i+=PRINT_DATA_MAX_SIZE)
- MPI_Send(outBuff+i, PRINT_DATA_MAX_SIZE, MPI_BYTE, 0, MPI_TAG_PRINT_DATA, MPI_COMM_WORLD);
-
- /* An overflow file exists, so we send it's output to the manager too and then delete it */
- if(overflow_file)
- {
- char out_data[PRINT_DATA_MAX_SIZE];
- int tmp;
-
- memset(out_data, 0, PRINT_DATA_MAX_SIZE);
- i=0;
-
- rewind(overflow_file);
- while((tmp = getc(overflow_file)) >= 0)
- {
- *(out_data + i++) = (char)tmp;
- if(i==PRINT_DATA_MAX_SIZE)
- {
- MPI_Send(out_data, PRINT_DATA_MAX_SIZE, MPI_BYTE, 0, MPI_TAG_PRINT_DATA, MPI_COMM_WORLD);
- i=0;
- memset(out_data, 0, PRINT_DATA_MAX_SIZE);
- }
- }
-
- if(i>0)
- MPI_Send(out_data, PRINT_DATA_MAX_SIZE, MPI_BYTE, 0, MPI_TAG_PRINT_DATA, MPI_COMM_WORLD);
-
- fclose(overflow_file);
- overflow_file = NULL;
- }
-
- fflush(stdout);
- memset(outBuff, 0, OUTBUFF_SIZE);
- outBuffOffset = 0;
-
- MPI_Send(&diffs, sizeof(diffs), MPI_BYTE, 0, MPI_TAG_TOK_RETURN, MPI_COMM_WORLD);
- }
- else
- MPI_Send(&diffs, sizeof(diffs), MPI_BYTE, 0, MPI_TAG_DONE, MPI_COMM_WORLD);
- }
- /* Check for leaving */
- else if(Status.MPI_TAG == MPI_TAG_END)
- {
- MPI_Recv(NULL, 0, MPI_BYTE, 0, MPI_TAG_END, MPI_COMM_WORLD, &Status);
- break;
- }
- else
- {
- printf("ph5diff_worker: ERROR: invalid tag (%d) received\n", Status.MPI_TAG);
- break;
- }
-
- }
-
- return;
-}
-
-/*-------------------------------------------------------------------------
- * Function: print_manager_output
- *
- * Purpose: special function that prints any output accumulated by the
- * manager task.
- *
- * Return: none
- *
- * Programmer: Leon Arber
- *
- * Date: Feb 7, 2005
- *
- *-------------------------------------------------------------------------
- */
-void print_manager_output(void)
-{
- /* If there was something we buffered, let's print it now */
- if( (outBuffOffset>0) && g_Parallel)
- {
- printf("%s", outBuff);
-
- if(overflow_file)
- {
- int tmp;
- rewind(overflow_file);
- while((tmp = getc(overflow_file)) >= 0)
- putchar(tmp);
- fclose(overflow_file);
- overflow_file = NULL;
- }
-
- HDfflush(stdout);
- HDmemset(outBuff, 0, OUTBUFF_SIZE);
- outBuffOffset = 0;
- }
- else if( (outBuffOffset>0) && !g_Parallel)
- {
- HDfprintf(stderr, "h5diff error: outBuffOffset>0, but we're not in parallel!\n");
- }
-}
-
-/*-------------------------------------------------------------------------
- * Function: h5diff_exit
- *
- * Purpose: dismiss phdiff worker processes and exit
- *
- * Return: none
- *
- * Programmer: Albert Cheng
- * Date: Feb 6, 2005
- *
- * Comments:
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-void h5diff_exit(int status)
-{
- /* if in parallel mode, dismiss workers, close down MPI, then exit */
- if(g_Parallel) {
- if(g_nTasks > 1) {
- phdiff_dismiss_workers();
- MPI_Barrier(MPI_COMM_WORLD);
- }
- MPI_Finalize();
- status = EXIT_SUCCESS; /* Reset exit status, since some mpiexec commands generate output on failure status */
- }
-
- /* Always exit(0), since MPI implementations do weird stuff when they
- * receive a non-zero exit value. - QAK
- */
- exit(0);
-}
-
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