Commit f0c55387cc2c52dea12904c44e23032c992ed8ad
1 parent
7be5246f9f
Exists in
master
fix mpi makefile
Showing 2 changed files with 3 additions and 3 deletions Inline Diff
lab1/Makefile
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f0c5538
| GCC = gcc | 1 | 1 | GCC = gcc | |
| MPI = mpicc | 2 | 2 | MPI = mpicc | |
| CFLAGS = -O3 -fopenmp | 3 | 3 | CFLAGS = -O3 -fopenmp | |
| OMP_FLAG = -fopenmp | 4 | 4 | OMP_FLAG = -fopenmp | |
| RM = rm -rf | 5 | 5 | RM = rm -rf | |
| 6 | 6 | |||
| 7 | 7 | |||
| EXE = pi_ser pi_omp pi_task pi_mpi | 8 | 8 | EXE = pi_ser pi_omp pi_task pi_mpi | |
| 9 | 9 | |||
| all : $(EXE) | 10 | 10 | all : $(EXE) | |
| 11 | 11 | |||
| #.PHONY: all clean purge | 12 | 12 | #.PHONY: all clean purge | |
| 13 | 13 | |||
| 14 | 14 | |||
| pi_ser: pi_ser.o | 15 | 15 | pi_ser: pi_ser.o | |
| $(GCC) $(CFLAGS) -o $@ $^ | 16 | 16 | $(GCC) $(CFLAGS) -o $@ $^ | |
| 17 | 17 | |||
| pi_task: pi_task.o | 18 | 18 | pi_task: pi_task.o | |
| $(GCC) $(CFLAGS) -o $@ $^ | 19 | 19 | $(GCC) $(CFLAGS) -o $@ $^ | |
| 20 | 20 | |||
| pi_omp: pi_omp.o | 21 | 21 | pi_omp: pi_omp.o | |
| $(GCC) $(CFLAGS) $(OMP_FLAG) -o $@ $^ | 22 | 22 | $(GCC) $(CFLAGS) $(OMP_FLAG) -o $@ $^ | |
| 23 | 23 | |||
| pi_mpi: pi_mpi.o | 24 | 24 | pi_mpi: |
lab1/pi_mpi.c
View file @
f0c5538
| #include <stdio.h> | 1 | 1 | #include <stdio.h> | |
| #include <string.h> | 2 | 2 | #include <string.h> | |
| #include "mpi.h" | 3 | 3 | #include <mpi.h> | |
| #define N 100000000 | 4 | 4 | #define N 100000000 | |
| 5 | 5 | |||
| int main (int argc, char** argv) | 6 | 6 | int main (int argc, char** argv) | |
| { | 7 | 7 | { | |
| int rank; | 8 | 8 | int rank; | |
| int size; | 9 | 9 | int size; | |
| long long int n; | 10 | 10 | long long int n; | |
| long long int i; | 11 | 11 | long long int i; | |
| 12 | 12 | |||
| double l_sum,total_sum, x, h; | 13 | 13 | double l_sum,total_sum, x, h; | |
| 14 | 14 | |||
| MPI_Init(NULL, NULL); | 15 | 15 | MPI_Init(NULL, NULL); | |
| 16 | 16 | |||
| MPI_Comm_size(MPI_COMM_WORLD, &size); | 17 | 17 | MPI_Comm_size(MPI_COMM_WORLD, &size); | |
| MPI_Comm_rank(MPI_COMM_WORLD, &rank); | 18 | 18 | MPI_Comm_rank(MPI_COMM_WORLD, &rank); | |
| 19 | 19 | |||
| n=N; | 20 | 20 | n=N; | |
| 21 | 21 | |||
| if(rank==0) | 22 | 22 | if(rank==0) | |
| { | 23 | 23 | { | |
| if(argc==2) | 24 | 24 | if(argc==2) | |
| { | 25 | 25 | { | |
| n = atoll(argv[1]); | 26 | 26 | n = atoll(argv[1]); | |
| } | 27 | 27 | } | |
| 28 | 28 | |||
| printf("MPI version with process = %d\n", size); | 29 | 29 | printf("MPI version with process = %d\n", size); | |
| printf("Number of intervals: %lld\n", n); | 30 | 30 | printf("Number of intervals: %lld\n", n); | |
| } | 31 | 31 | } | |
| 32 | 32 | |||
| 33 | 33 | |||
| MPI_Bcast(&n, 1, MPI_INT, 0, MPI_COMM_WORLD); | 34 | 34 | MPI_Bcast(&n, 1, MPI_INT, 0, MPI_COMM_WORLD); | |
| 35 | 35 | |||
| 36 | 36 | |||
| h = 1.0/n; | 37 | 37 | h = 1.0/n; | |
| 38 | 38 | |||
| l_sum = 0.0; | 39 | 39 | l_sum = 0.0; | |
| 40 | 40 | |||
| for (i = rank; i < n; i += size) | 41 | 41 | for (i = rank; i < n; i += size) | |
| { | 42 | 42 | { |