1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 "h5diff.h"
#include "ph5diff.h"
#include <stdlib.h>
#include <assert.h>
#include "h5diff_common.h"
static void ph5diff_worker(int );
/*-------------------------------------------------------------------------
* Function: main
*
* Purpose: h5diff/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:
*
* Modifications: July 2004
* Introduced the four modes:
* Normal mode: print the number of differences found and where they occured
* Report mode: print the above plus the differences
* Verbose mode: print the above plus a list of objects and warnings
* Quiet mode: do not print output
*
* November 2004: Leon Arber (larber@uiuc.edu)
* Additions that allow h5diff to be run in parallel
*
* 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;
hsize_t nfound=0;
diff_opt_t options;
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_input(argc, argv, &fname1, &fname2, &objname1, &objname2, &options);
nfound = h5diff(fname1,fname2,objname1,objname2,&options);
print_results(&options);
MPI_Finalize();
return 0;
}
/* Have the manager process the command-line */
if(nID == 0)
{
parse_input(argc, argv, &fname1, &fname2, &objname1, &objname2, &options);
nfound = h5diff(fname1,fname2,objname1,objname2,&options);
MPI_Barrier(MPI_COMM_WORLD);
print_results(&options);
print_manager_output();
MPI_Finalize();
return 0;
}
/* All other tasks become workers and wait for assignments. */
else
ph5diff_worker(nID);
}
/*-------------------------------------------------------------------------
* Function: ph5diff_worker
*
* Purpose: worker process of ph5diff
*
* Return: none
*
* Programmer: Leon Arber
* Date: January 2005
*
* Comments:
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static void
ph5diff_worker(int nID)
{
struct diff_args args;
hid_t file1_id, file2_id;
char filenames[2][1024];
char out_data[PRINT_DATA_MAX_SIZE] = {0};
hsize_t nfound=0;
struct diffs_found diffs;
int i;
MPI_Status Status;
MPI_Comm_rank(MPI_COMM_WORLD, &nID);
outBuffOffset = 0;
MPI_Recv(filenames, 1024*2, MPI_CHAR, 0, MPI_ANY_TAG, MPI_COMM_WORLD, &Status);
if(Status.MPI_TAG == MPI_TAG_PARALLEL)
{
/* 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;
while(1)
{
MPI_Probe(0, MPI_ANY_TAG, MPI_COMM_WORLD, &Status);
if(Status.MPI_TAG == MPI_TAG_ARGS)
{
/*Recv parameters for diff from manager task */
MPI_Recv(&args, sizeof(struct diff_args), MPI_BYTE, 0, MPI_TAG_ARGS, MPI_COMM_WORLD, &Status);
/*Do the diff */
nfound = diff(file1_id, args.name, file2_id, args.name, &(args.options), args.type);
diffs.nfound = nfound;
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)
{
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);
}
else if(Status.MPI_TAG == MPI_TAG_END)
{
MPI_Recv(NULL, 0, MPI_BYTE, 0, MPI_TAG_END, MPI_COMM_WORLD, &Status);
/* printf("exiting..., task: %d\n", nID);
fflush(stdout);*/
break;
}
else
{
printf("ph5diff_worker: ERROR: invalid tag (%d) received\n", Status.MPI_TAG);
MPI_Abort(MPI_COMM_WORLD, 0);
}
}
}
MPI_Barrier(MPI_COMM_WORLD);
MPI_Finalize();
}
|
