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Commit b75407fe authored by Nicolas Fley's avatar Nicolas Fley
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pi, token, bcast, bcast_log done

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pi_parallele/bin/Debug/pi_parallele.exe 0 → 100644
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pi_parallele/bin/Debug/test.cmd 0 → 100644
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for /l %%X in (1,1,25) do echo %%X
wait
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pi_parallele/main.c 0 → 100644
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#include <stdio.h>
#include <mpi.h>
#define PI 3.14159265359
/*
Commands :
cd 'B:\Mes Documents\progra\calcInt\'
C:\MPICH2\bin\mpiexec.exe -localonly 10
*/
double f(double x); // la fonction intgrer entre 0 et 1
int main (int argc, char *argv[]) {
/*
* Version parallele du probleme, appel de n processus calculant une partie
* de l'intgrale dfinie prcedemment. Puis renvoie au master (rank==0) qui
* agrge tout a.
*/
// les variables
int rank, size, nbProcess;
double pi_esc,nbProcess_f,h,t1,t2,time;
MPI_Status status;
double sum=0;
double sum_time=0;
int nbTrap=-1;
MPI_Init (&argc, &argv); /* starts MPI */
t1 = MPI_Wtime();
// recuperation pour chaque process de son numero et du nombre de process
MPI_Comm_rank(MPI_COMM_WORLD, &rank); /* get current process id */
MPI_Comm_size(MPI_COMM_WORLD, &size); /* get number of processes */
if(argc==2){ // si il y a un argument en plus du nom du programme, on rcupre le nombre
nbTrap=atoi(argv[1]); // renvoie zero si aucun nombre dtct en paramtres
if(rank==0)
//printf("%d trapeze will be used.\n",nbTrap);
;
}
if(!(nbTrap>0)){ // si pas d'arguments ou argument erron (atoi a renvoy 0).
nbTrap=10000;
if(rank==0)
printf("No nb of trapeze given in parameters, a 10000 default value has been used.\n");
}
// gnration des constantes.
nbProcess=size-1;
nbProcess_f=(double)size-1.0;
h=1.0/(double)nbTrap;
if(rank==0){
/*
* Le process de rang 0 est le maitre, il reoit les calculs des autres processus, les esclaves.
* On aurait pu faire calculer le processus de rang 0 mais il est communement admis de garder un processus
* en tant que matre (one ring to rule them all).
*/
printf("executed with %f slaves and 1 master\n",nbProcess_f);
for(int i=1;i!=nbProcess+1;i++){ // on reoit les rsultat des calculs des esclaves.
MPI_Recv(&pi_esc,1,MPI_DOUBLE,i,10,MPI_COMM_WORLD,&status);
printf("\nrecu proc %d = %f",i,pi_esc); // debug output
sum+=pi_esc;
}
for(int i=1;i!=nbProcess+1;i++){ // on reoit les temps d'execution des esclaves et on calcul le "temps total" d'execution.
MPI_Recv(&time,1,MPI_DOUBLE,i,11,MPI_COMM_WORLD,&status);
sum_time+=time;
}
t2 = MPI_Wtime(); // le temps rel d'execution du programme.
printf("###\npi_par = %f, delta = %f\n###\ntemps total : %f\ntemps reel : %f\n",sum,sum-PI,sum_time,t2-t1); // sortie formate
//printf("%d,%d,%.10f,%f,%f\n",nbTrap,size,sum,sum_time,t2-t1); // sortie pour tableur
}else{
double b=(double)rank-1.0;// on utilise b pour dfinir l'interval de l'integrale a calculer.
pi_esc=0;
for(double i=b/nbProcess_f;i<(b+1.0)/nbProcess_f;i+=h){ // sparation en boucle
pi_esc+=(f(i)+f((i+h))); //somme
}
pi_esc=pi_esc/((double)nbTrap)/2.0;
//printf("sent proc %d = %f\n",rank,pi_esc);
MPI_Send(&pi_esc,1,MPI_DOUBLE,0,10,MPI_COMM_WORLD);
t2 = MPI_Wtime();
time=t2 - t1; // calcul du temps d'execution de cette partie du programme.
MPI_Send(&time,1,MPI_DOUBLE,0,11,MPI_COMM_WORLD); // envoie au master du travail effectu.
}
MPI_Finalize(); // terminaison de MPI
return 0;
}
double f(double x){
return 4.0/(1.0+x*x);
}
pi_parallele/obj/Debug/main.o 0 → 100644
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pi_parallele/pi_parallele.cbp 0 → 100644
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<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_project_file>
<FileVersion major="1" minor="6" />
<Project>
<Option title="pi_parallele" />
<Option pch_mode="2" />
<Option compiler="gcc" />
<Build>
<Target title="Debug">
<Option output="bin/Debug/pi_parallele" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Debug/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-g" />
</Compiler>
</Target>
<Target title="Release">
<Option output="bin/Release/pi_parallele" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Release/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-O2" />
</Compiler>
<Linker>
<Add option="-s" />
</Linker>
</Target>
</Build>
<Compiler>
<Add option="-Wall" />
</Compiler>
<Unit filename="main.c">
<Option compilerVar="CC" />
</Unit>
<Extensions>
<code_completion />
<envvars />
<debugger />
</Extensions>
</Project>
</CodeBlocks_project_file>
pi_parallele/pi_parallele.layout 0 → 100644
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<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_layout_file>
<FileVersion major="1" minor="0" />
<ActiveTarget name="Debug" />
<File name="main.c" open="1" top="0" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="1633" topLine="51" />
</Cursor>
</File>
</CodeBlocks_layout_file>
token/bin/Debug/token.exe
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token/main.c
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#include <stdio.h>
#include <mpi.h>
#define NUM_TURN 3
int main (int argc, char *argv[]) {
int rank,size;
int num_turn_max=0;
int num_turn=0;
int finished=0;
int token=0;
MPI_Status status;
MPI_Init (&argc, &argv); /* starts MPI */
// rcupration du nombre de tour, par dfaut 5
if(argc==2){
num_turn_max=atoi(argv[1]);
}
if(num_turn_max==0 || argc==0){
num_turn_max=5;
}
// recuperation pour chaque process de son numero et du nombre de process
MPI_Comm_rank(MPI_COMM_WORLD, &rank); /* get current process id */
MPI_Comm_size(MPI_COMM_WORLD, &size); /* get number of processes */
while(finished==0){
while(finished==0){ // le process rentre dans la boucle et y reste tant que le nombre de tour n'est pas atteint
if(rank!=0){
MPI_Recv(&token,1,MPI_INT,rank-1,10,MPI_COMM_WORLD,&status);
}else{
if(num_turn>0){
if(num_turn>0){ // au premier tour le process de rang 0 n'a rien recevoir !
MPI_Recv(&token,1,MPI_INT,size-1,10,MPI_COMM_WORLD,&status);
token+=size;
}else if(argc==1){
printf("No argument given, 5 as been set as the default max turn."); // pour afficher qu'une seule fois le warning
}
}
token+=rank+1;
token+=rank+1; // on ajoute au token la valeur du rang actuel (en prenant en compte que le process 0 la valeur 1)
num_turn+=1;
if(rank+1==size){
rank=-1;
//printf("tour %d\n",num_turn);
}
if(num_turn==NUM_TURN){
if(num_turn==num_turn_max){ // si on a fait le bon nombre de tours on quit
finished=1;
}
if(!(finished==1&&rank==-1))
MPI_Send(&token,1,MPI_INT,rank+1,10,MPI_COMM_WORLD);
else
printf("\nresult : %d\nresult should be : %d\n",token,size*NUM_TURN*(size+1)/2);
else // affichage du rsultat si rang 0 et dernier tour finit !
printf("\nnumber of turn : %d\nresult : %d\nresult should be : %d\n",num_turn_max,token,size*num_turn_max*(size+1)/2);
}
MPI_Finalize();
......
token/main.h deleted 100644 → 0
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token/obj/Debug/main.o
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token/token.cbp
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......@@ -31,6 +31,9 @@
<Compiler>
<Add option="-Wall" />
</Compiler>
<Unit filename="main.c">
<Option compilerVar="CC" />
</Unit>
<Extensions>
<code_completion />
<envvars />
......
token/token.depend
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# depslib dependency file v1.0
1487277599 source:b:\mes documents\progra\calcint\token\main.c
1487325302 source:b:\mes documents\progra\calcint\token\main.c
<stdio.h>
<mpi.h>
token/token.layout 0 → 100644
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<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_layout_file>
<FileVersion major="1" minor="0" />
<ActiveTarget name="Debug" />
<File name="main.c" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="1842" topLine="34" />
</Cursor>
</File>
</CodeBlocks_layout_file>
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