Révision 80
| Pi/C/MPI/Makefile (revision 80) | ||
|---|---|---|
| 1 |
EXECUTABLE=Pi_MPI_LONG Pi_MPI_INT Pi_MPI_LONG_TIME Pi_MPI_INT_TIME
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| 1 |
SOURCE=Pi_aMPI.c Pi_MPI.c
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| 2 | 2 |
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| 3 |
SOURCE=Pi_MPI.c
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| 3 |
COMPUTING=INT32 INT64 FP32 FP64
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| 4 | 4 |
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| 5 |
MARSAGLIA=SHR3 CONG MWC KISS |
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| 6 |
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| 5 | 7 |
CC=mpicc.openmpi |
| 6 | 8 |
CFLAGS=-Wall -O3 -std=c99 |
| 7 | 9 |
LIBRARY=-lm |
| 8 | 10 |
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| 9 |
all: $(EXECUTABLE)
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| 11 |
all: $(SOURCE)
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| 10 | 12 |
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| 11 |
Pi_MPI_LONG_TIME: $(SOURCE)
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| 13 |
$(foreach SRC,$(SOURCE),$(foreach TVAR,$(COMPUTING),$(foreach TRND,$(MARSAGLIA),$(CC) $(CFLAGS) -DT$(TVAR) -DT$(TRND) -DLONG -DTIME -o $(SRC:.c=)_$(TVAR)_$(TRND) $(SRC) $(LIBRARY); ) ) )
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| 12 | 14 |
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| 13 |
$(CC) $(CFLAGS) $(DIRECTIVES) -DLONG -DTIME -o $@ $< $(LIBRARY) |
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| 14 |
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| 15 |
Pi_MPI_INT_TIME: $(SOURCE) |
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| 16 |
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| 17 |
$(CC) $(CFLAGS) $(DIRECTIVES) -DINTEGER -DTIME -o $@ $< $(LIBRARY) |
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| 18 |
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| 19 |
Pi_MPI_LONG: $(SOURCE) |
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| 20 |
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| 21 |
$(CC) $(CFLAGS) $(DIRECTIVES) -DLONG -o $@ $< $(LIBRARY) |
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| 22 |
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| 23 |
Pi_MPI_INT: $(SOURCE) |
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| 24 |
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| 25 |
$(CC) $(CFLAGS) $(DIRECTIVES) -DINTEGER -o $@ $< $(LIBRARY) |
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| 26 |
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| 27 | 15 |
.PHONY: clean check mrproper |
| 28 | 16 |
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| 29 | 17 |
mrproper: |
| 30 |
rm -rf $(EXECUTABLE)
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| 18 |
echo rm -rf $(foreach SRC,$(SOURCE),$(foreach TVAR,$(COMPUTING),$(foreach TRND,$(MARSAGLIA),$(SOURCE:.c=)_$(TVAR)_$(TRND) ) ) )
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| 31 | 19 |
find . -name "*~" -exec rm {} \;
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| 32 | 20 |
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| 33 | 21 |
clean: |
| ... | ... | |
| 35 | 23 |
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| 36 | 24 |
check: $(EXECUTABLE) |
| 37 | 25 |
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| 38 |
$(SOURCE:.c=)_SP_$(EXECUTABLE) 2 1 |
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| 26 |
@echo "To be Defined" |
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| Pi/C/MPI/Pi_MPI.c (revision 80) | ||
|---|---|---|
| 82 | 82 |
#endif |
| 83 | 83 |
|
| 84 | 84 |
MPI_Status Stat; |
| 85 |
MPI_Request RequestSend, RequestRecv, RequestSend2, RequestRecv2; |
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| 86 |
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| 85 |
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| 87 | 86 |
rc = MPI_Init(&argc,&argv); |
| 88 | 87 |
if (rc != MPI_SUCCESS) {
|
| 89 | 88 |
printf ("Error starting MPI program. Terminating.\n");
|
| ... | ... | |
| 117 | 116 |
for (i=1;i<numtasks;i++) {
|
| 118 | 117 |
|
| 119 | 118 |
#ifdef LONG |
| 120 |
rc = MPI_Isend(&part_iterations, 1, MPI_LONG_LONG, i, tag,
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| 121 |
MPI_COMM_WORLD,&RequestSend);
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| 119 |
rc = MPI_Send(&part_iterations, 1, MPI_LONG_LONG, i, tag,
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| 120 |
MPI_COMM_WORLD);
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| 122 | 121 |
#else |
| 123 |
rc = MPI_Isend(&part_iterations, 1, MPI_INT, i, tag,
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| 124 |
MPI_COMM_WORLD,&RequestSend);
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| 125 |
#endif
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| 122 |
rc = MPI_Send(&part_iterations, 1, MPI_INT, i, tag,
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| 123 |
MPI_COMM_WORLD);
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| 124 |
#endif |
|
| 126 | 125 |
} |
| 127 |
MPI_Wait(&RequestSend, &Stat); |
|
| 128 | 126 |
|
| 129 | 127 |
#ifdef TIME |
| 130 | 128 |
gettimeofday(&start,(struct timezone *)0); |
| ... | ... | |
| 147 | 145 |
// Join part of code |
| 148 | 146 |
for (i=1;i<numtasks;i++) {
|
| 149 | 147 |
#ifdef LONG |
| 150 |
rc = MPI_Irecv(&inside[i], 1, MPI_LONG_LONG, i, tag,
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| 151 |
MPI_COMM_WORLD, &RequestRecv2);
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| 148 |
rc = MPI_Recv(&inside[i], 1, MPI_LONG_LONG, i, tag,
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| 149 |
MPI_COMM_WORLD, &Stat);
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| 152 | 150 |
#else |
| 153 |
rc = MPI_Irecv(&inside[i], 1, MPI_INT, i, tag,
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| 154 |
MPI_COMM_WORLD, &RequestRecv2);
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| 151 |
rc = MPI_Recv(&inside[i], 1, MPI_INT, i, tag,
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MPI_COMM_WORLD, &Stat);
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| 155 | 153 |
#endif |
| 156 |
MPI_Wait(&RequestRecv2, &Stat); |
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| 157 |
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| 158 | 154 |
printf("\tReceive %lu inside from rank %i\n",(unsigned long)inside[i],i);
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| 159 | 155 |
insides+=inside[i]; |
| 160 | 156 |
} |
| ... | ... | |
| 169 | 165 |
{
|
| 170 | 166 |
// Receive information from master |
| 171 | 167 |
#ifdef LONG |
| 172 |
rc = MPI_Irecv(&part_iterations, 1, MPI_LONG_LONG, 0, tag,
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| 173 |
MPI_COMM_WORLD, &RequestRecv);
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| 168 |
rc = MPI_Recv(&part_iterations, 1, MPI_LONG_LONG, 0, tag,
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| 169 |
MPI_COMM_WORLD, &Stat);
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| 174 | 170 |
#else |
| 175 |
rc = MPI_Irecv(&part_iterations, 1, MPI_INT, 0, tag,
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| 176 |
MPI_COMM_WORLD, &RequestRecv);
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| 171 |
rc = MPI_Recv(&part_iterations, 1, MPI_INT, 0, tag,
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| 172 |
MPI_COMM_WORLD, &Stat);
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| 177 | 173 |
#endif |
| 178 |
MPI_Wait(&RequestRecv, &Stat); |
|
| 179 | 174 |
|
| 180 | 175 |
printf("\tOn %s with rank %i, receive from master %lld\n",
|
| 181 | 176 |
hostname,rank,(long long)part_iterations); |
| ... | ... | |
| 200 | 195 |
#endif |
| 201 | 196 |
|
| 202 | 197 |
#ifdef LONG |
| 203 |
rc = MPI_Isend(&part_inside, 1, MPI_LONG_LONG, 0, tag, MPI_COMM_WORLD,&RequestSend2);
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| 198 |
rc = MPI_Send(&part_inside, 1, MPI_LONG_LONG, 0, tag, MPI_COMM_WORLD);
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| 204 | 199 |
#else |
| 205 |
rc = MPI_Isend(&part_inside, 1, MPI_INT, 0, tag, MPI_COMM_WORLD,&RequestSend2);
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| 200 |
rc = MPI_Send(&part_inside, 1, MPI_INT, 0, tag, MPI_COMM_WORLD);
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| 206 | 201 |
#endif |
| 207 |
MPI_Wait(&RequestSend2, &Stat); |
|
| 208 | 202 |
|
| 209 | 203 |
} |
| 210 | 204 |
|
| Pi/C/MPI/Pi_aMPI.c (revision 80) | ||
|---|---|---|
| 1 |
// |
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| 2 |
// Estimation of Pi using Monte Carlo exploration process |
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| 3 |
// gcc -std=c99 -O3 -o Pi Pi.c -lm |
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| 4 |
// Emmanuel Quemener <emmanuel.quemener@ens-lyon.fr> |
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| 5 |
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| 6 |
// Needed for gethostname |
|
| 7 |
#define _BSD_SOURCE |
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| 8 |
#include <sys/unistd.h> |
|
| 9 |
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| 10 |
#include <math.h> |
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| 11 |
#include <stdio.h> |
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| 12 |
#include <stdlib.h> |
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| 13 |
#include <limits.h> |
|
| 14 |
#include <mpi.h> |
|
| 15 |
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| 16 |
#ifdef TIME |
|
| 17 |
#include <sys/time.h> |
|
| 18 |
#endif |
|
| 19 |
|
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| 20 |
// Marsaglia RNG very simple implementation |
|
| 21 |
#define znew ((z=36969*(z&65535)+(z>>16))<<16) |
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| 22 |
#define wnew ((w=18000*(w&65535)+(w>>16))&65535) |
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| 23 |
#define MWC (znew+wnew) |
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| 24 |
#define SHR3 (jsr=(jsr=(jsr=jsr^(jsr<<17))^(jsr>>13))^(jsr<<5)) |
|
| 25 |
#define CONG (jcong=69069*jcong+1234567) |
|
| 26 |
#define KISS ((MWC^CONG)+SHR3) |
|
| 27 |
|
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| 28 |
#define MWCfp MWC * 2.328306435454494e-10f |
|
| 29 |
#define KISSfp KISS * 2.328306435454494e-10f |
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| 30 |
#define SHR3fp SHR3 * 2.328306435454494e-10f |
|
| 31 |
#define CONGfp CONG * 2.328306435454494e-10f |
|
| 32 |
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| 33 |
#define ITERATIONS 1000000000 |
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| 34 |
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| 35 |
#ifdef LONG |
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| 36 |
#define LENGTH long long |
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| 37 |
#else |
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| 38 |
#define LENGTH int |
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| 39 |
#endif |
|
| 40 |
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| 41 |
unsigned int rotl(unsigned int value, int shift) {
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| 42 |
return (value << shift) | (value >> (sizeof(value) * CHAR_BIT - shift)); |
|
| 43 |
} |
|
| 44 |
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| 45 |
unsigned int rotr(unsigned int value, int shift) {
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| 46 |
return (value >> shift) | (value << (sizeof(value) * CHAR_BIT - shift)); |
|
| 47 |
} |
|
| 48 |
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| 49 |
LENGTH MainLoopGlobal(LENGTH iterations,unsigned int seed_w,unsigned int seed_z) |
|
| 50 |
{
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| 51 |
#if defined TCONG |
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| 52 |
unsigned int jcong=seed_z; |
|
| 53 |
#elif defined TSHR3 |
|
| 54 |
unsigned int jsr=seed_w; |
|
| 55 |
#elif defined TMWC |
|
| 56 |
unsigned int z=seed_z; |
|
| 57 |
unsigned int w=seed_w; |
|
| 58 |
#elif defined TKISS |
|
| 59 |
unsigned int jcong=seed_z; |
|
| 60 |
unsigned int jsr=seed_w; |
|
| 61 |
unsigned int z=seed_z; |
|
| 62 |
unsigned int w=seed_w; |
|
| 63 |
#endif |
|
| 64 |
|
|
| 65 |
LENGTH total=0; |
|
| 66 |
|
|
| 67 |
for (LENGTH i=0;i<iterations;i++) {
|
|
| 68 |
|
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| 69 |
#if defined TINT32 |
|
| 70 |
#define THEONE 1073741824 |
|
| 71 |
#if defined TCONG |
|
| 72 |
unsigned int x=CONG>>17 ; |
|
| 73 |
unsigned int y=CONG>>17 ; |
|
| 74 |
#elif defined TSHR3 |
|
| 75 |
unsigned int x=SHR3>>17 ; |
|
| 76 |
unsigned int y=SHR3>>17 ; |
|
| 77 |
#elif defined TMWC |
|
| 78 |
unsigned int x=MWC>>17 ; |
|
| 79 |
unsigned int y=MWC>>17 ; |
|
| 80 |
#elif defined TKISS |
|
| 81 |
unsigned int x=KISS>>17 ; |
|
| 82 |
unsigned int y=KISS>>17 ; |
|
| 83 |
#endif |
|
| 84 |
#elif defined TINT64 |
|
| 85 |
#define THEONE 4611686018427387904 |
|
| 86 |
#if defined TCONG |
|
| 87 |
unsigned long x=(unsigned long)(CONG>>1) ; |
|
| 88 |
unsigned long y=(unsigned long)(CONG>>1) ; |
|
| 89 |
#elif defined TSHR3 |
|
| 90 |
unsigned long x=(unsigned long)(SHR3>>1) ; |
|
| 91 |
unsigned long y=(unsigned long)(SHR3>>1) ; |
|
| 92 |
#elif defined TMWC |
|
| 93 |
unsigned long x=(unsigned long)(MWC>>1) ; |
|
| 94 |
unsigned long y=(unsigned long)(MWC>>1) ; |
|
| 95 |
#elif defined TKISS |
|
| 96 |
unsigned long x=(unsigned long)(KISS>>1) ; |
|
| 97 |
unsigned long y=(unsigned long)(KISS>>1) ; |
|
| 98 |
#endif |
|
| 99 |
#elif defined TFP32 |
|
| 100 |
#define THEONE 1.0f |
|
| 101 |
#if defined TCONG |
|
| 102 |
float x=CONGfp ; |
|
| 103 |
float y=CONGfp ; |
|
| 104 |
#elif defined TSHR3 |
|
| 105 |
float x=SHR3fp ; |
|
| 106 |
float y=SHR3fp ; |
|
| 107 |
#elif defined TMWC |
|
| 108 |
float x=MWCfp ; |
|
| 109 |
float y=MWCfp ; |
|
| 110 |
#elif defined TKISS |
|
| 111 |
float x=KISSfp ; |
|
| 112 |
float y=KISSfp ; |
|
| 113 |
#endif |
|
| 114 |
#elif defined TFP64 |
|
| 115 |
#define THEONE 1.0f |
|
| 116 |
#if defined TCONG |
|
| 117 |
double x=(double)CONGfp ; |
|
| 118 |
double y=(double)CONGfp ; |
|
| 119 |
#elif defined TSHR3 |
|
| 120 |
double x=(double)SHR3fp ; |
|
| 121 |
double y=(double)SHR3fp ; |
|
| 122 |
#elif defined TMWC |
|
| 123 |
double x=(double)MWCfp ; |
|
| 124 |
double y=(double)MWCfp ; |
|
| 125 |
#elif defined TKISS |
|
| 126 |
double x=(double)KISSfp ; |
|
| 127 |
double y=(double)KISSfp ; |
|
| 128 |
#endif |
|
| 129 |
#endif |
|
| 130 |
|
|
| 131 |
// Matching test |
|
| 132 |
unsigned long inside=((x*x+y*y) < THEONE) ? 1:0; |
|
| 133 |
total+=inside; |
|
| 134 |
} |
|
| 135 |
|
|
| 136 |
return(total); |
|
| 137 |
|
|
| 138 |
} |
|
| 139 |
|
|
| 140 |
int main(int argc, char *argv[]) {
|
|
| 141 |
|
|
| 142 |
unsigned int seed_z=362436069,seed_w=52128862; |
|
| 143 |
LENGTH iterations=ITERATIONS,inside[1024],insides,part_inside,part_iterations; |
|
| 144 |
int numtasks,rank,rc,tag=1,i; |
|
| 145 |
float pi; |
|
| 146 |
|
|
| 147 |
char hostname[128]; |
|
| 148 |
|
|
| 149 |
gethostname(hostname, sizeof hostname); |
|
| 150 |
|
|
| 151 |
#ifdef TIME |
|
| 152 |
struct timeval start,end; |
|
| 153 |
long int useconds; |
|
| 154 |
#endif |
|
| 155 |
|
|
| 156 |
MPI_Status Stat; |
|
| 157 |
MPI_Request RequestSend, RequestRecv, RequestSend2, RequestRecv2; |
|
| 158 |
|
|
| 159 |
rc = MPI_Init(&argc,&argv); |
|
| 160 |
if (rc != MPI_SUCCESS) {
|
|
| 161 |
printf ("Error starting MPI program. Terminating.\n");
|
|
| 162 |
MPI_Abort(MPI_COMM_WORLD, rc); |
|
| 163 |
} |
|
| 164 |
|
|
| 165 |
MPI_Comm_size(MPI_COMM_WORLD,&numtasks); |
|
| 166 |
MPI_Comm_rank(MPI_COMM_WORLD,&rank); |
|
| 167 |
|
|
| 168 |
if (rank==0) {
|
|
| 169 |
|
|
| 170 |
if (argc > 1) {
|
|
| 171 |
iterations=(LENGTH)atoll(argv[1]); |
|
| 172 |
} |
|
| 173 |
else {
|
|
| 174 |
printf("\n\tPi : Estimate Pi with Monte Carlo exploration\n\n");
|
|
| 175 |
printf("\t\t#1 : number of iterations (default 1 billion)\n\n");
|
|
| 176 |
} |
|
| 177 |
|
|
| 178 |
printf ("Sizeof int = %lld bytes.\n", (long long)sizeof(int));
|
|
| 179 |
printf ("Sizeof long = %lld bytes.\n", (long long)sizeof(long));
|
|
| 180 |
printf ("Sizeof long long = %lld bytes.\n", (long long)sizeof(long long));
|
|
| 181 |
|
|
| 182 |
printf ("Max int = %u\n", INT_MAX);
|
|
| 183 |
printf ("Max long = %ld\n", LONG_MAX);
|
|
| 184 |
printf ("Max long long = %lld\n", LLONG_MAX);
|
|
| 185 |
|
|
| 186 |
part_iterations=iterations/numtasks+1; |
|
| 187 |
|
|
| 188 |
// Split part of code |
|
| 189 |
for (i=1;i<numtasks;i++) {
|
|
| 190 |
|
|
| 191 |
#ifdef LONG |
|
| 192 |
rc = MPI_Isend(&part_iterations, 1, MPI_LONG_LONG, i, tag, |
|
| 193 |
MPI_COMM_WORLD,&RequestSend); |
|
| 194 |
#else |
|
| 195 |
rc = MPI_Isend(&part_iterations, 1, MPI_INT, i, tag, |
|
| 196 |
MPI_COMM_WORLD,&RequestSend); |
|
| 197 |
#endif |
|
| 198 |
} |
|
| 199 |
MPI_Wait(&RequestSend, &Stat); |
|
| 200 |
|
|
| 201 |
#ifdef TIME |
|
| 202 |
gettimeofday(&start,(struct timezone *)0); |
|
| 203 |
#endif |
|
| 204 |
|
|
| 205 |
insides=MainLoopGlobal(part_iterations,seed_w,seed_z); |
|
| 206 |
|
|
| 207 |
#ifdef TIME |
|
| 208 |
gettimeofday(&end,(struct timezone *)0); |
|
| 209 |
useconds=(end.tv_sec-start.tv_sec)*1000000+end.tv_usec-start.tv_usec; |
|
| 210 |
|
|
| 211 |
printf("\tOn %s with rank %i, find %lld inside in %lu useconds.\n",
|
|
| 212 |
hostname,rank,(long long)insides,useconds); |
|
| 213 |
#else |
|
| 214 |
printf("\tOn %s with rank %i, find %lld inside\n",hostname,rank,
|
|
| 215 |
(long long)insides); |
|
| 216 |
|
|
| 217 |
#endif |
|
| 218 |
|
|
| 219 |
// Join part of code |
|
| 220 |
for (i=1;i<numtasks;i++) {
|
|
| 221 |
#ifdef LONG |
|
| 222 |
rc = MPI_Irecv(&inside[i], 1, MPI_LONG_LONG, i, tag, |
|
| 223 |
MPI_COMM_WORLD, &RequestRecv2); |
|
| 224 |
#else |
|
| 225 |
rc = MPI_Irecv(&inside[i], 1, MPI_INT, i, tag, |
|
| 226 |
MPI_COMM_WORLD, &RequestRecv2); |
|
| 227 |
#endif |
|
| 228 |
MPI_Wait(&RequestRecv2, &Stat); |
|
| 229 |
|
|
| 230 |
printf("\tReceive %lu inside from rank %i\n",(unsigned long)inside[i],i);
|
|
| 231 |
insides+=inside[i]; |
|
| 232 |
} |
|
| 233 |
|
|
| 234 |
pi=4.*(float)insides/(float)((iterations/numtasks)*numtasks); |
|
| 235 |
|
|
| 236 |
printf("\n\tPi=%.40f\n\twith error %.40f\n\twith %lld iterations\n\n",pi,
|
|
| 237 |
fabs(pi-4*atan(1.))/pi,(long long)iterations); |
|
| 238 |
|
|
| 239 |
} |
|
| 240 |
else |
|
| 241 |
{
|
|
| 242 |
// Receive information from master |
|
| 243 |
#ifdef LONG |
|
| 244 |
rc = MPI_Irecv(&part_iterations, 1, MPI_LONG_LONG, 0, tag, |
|
| 245 |
MPI_COMM_WORLD, &RequestRecv); |
|
| 246 |
#else |
|
| 247 |
rc = MPI_Irecv(&part_iterations, 1, MPI_INT, 0, tag, |
|
| 248 |
MPI_COMM_WORLD, &RequestRecv); |
|
| 249 |
#endif |
|
| 250 |
MPI_Wait(&RequestRecv, &Stat); |
|
| 251 |
|
|
| 252 |
printf("\tOn %s with rank %i, receive from master %lld\n",
|
|
| 253 |
hostname,rank,(long long)part_iterations); |
|
| 254 |
|
|
| 255 |
#ifdef TIME |
|
| 256 |
gettimeofday(&start,(struct timezone *)0); |
|
| 257 |
#endif |
|
| 258 |
|
|
| 259 |
part_inside=MainLoopGlobal(part_iterations,rotr(seed_w,rank),rotl(seed_z,rank)); |
|
| 260 |
|
|
| 261 |
|
|
| 262 |
#ifdef TIME |
|
| 263 |
gettimeofday(&end,(struct timezone *)0); |
|
| 264 |
useconds=(end.tv_sec-start.tv_sec)*1000000+end.tv_usec-start.tv_usec; |
|
| 265 |
|
|
| 266 |
printf("\tOn %s with rank %i, find %lld inside in %lu useconds.\n",
|
|
| 267 |
hostname,rank,(long long)part_inside,useconds); |
|
| 268 |
#else |
|
| 269 |
printf("\tOn %s with rank %i, find %lld inside\n",hostname,rank,
|
|
| 270 |
(long long)part_inside); |
|
| 271 |
|
|
| 272 |
#endif |
|
| 273 |
|
|
| 274 |
#ifdef LONG |
|
| 275 |
rc = MPI_Isend(&part_inside, 1, MPI_LONG_LONG, 0, tag, MPI_COMM_WORLD,&RequestSend2); |
|
| 276 |
#else |
|
| 277 |
rc = MPI_Isend(&part_inside, 1, MPI_INT, 0, tag, MPI_COMM_WORLD,&RequestSend2); |
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| 278 |
#endif |
|
| 279 |
MPI_Wait(&RequestSend2, &Stat); |
|
| 280 |
|
|
| 281 |
} |
|
| 282 |
|
|
| 283 |
MPI_Finalize(); |
|
| 284 |
|
|
| 285 |
} |
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Formats disponibles : Unified diff