From 370399cd318bb4d06f6e6d25b1673a77701f3971 Mon Sep 17 00:00:00 2001
From: 13513022 <13513022@ld5-01.if.itb.ac.id>
Date: Fri, 12 Feb 2016 17:15:38 +0700
Subject: [PATCH] test with send_recv

---
 send_rec    | Bin 0 -> 9032 bytes
 send_recv   | Bin 0 -> 9032 bytes
 send_recv.c |  81 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 81 insertions(+)
 create mode 100755 send_rec
 create mode 100755 send_recv
 create mode 100644 send_recv.c

diff --git a/send_rec b/send_rec
new file mode 100755
index 0000000000000000000000000000000000000000..084d3925b9a6abf51649c3a0c49a668bcf4e7ab0
GIT binary patch
literal 9032
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diff --git a/send_recv b/send_recv
new file mode 100755
index 0000000000000000000000000000000000000000..b7f088a0412287604562b5f1614225b1f158db49
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/send_recv.c b/send_recv.c
new file mode 100644
index 0000000..c9aa6da
--- /dev/null
+++ b/send_recv.c
@@ -0,0 +1,81 @@
+// Copyright www.computing.llnl.gov 
+#include <stdio.h> 
+#include <stdlib.h> 
+#include <time.h> 
+#include <mpi.h> 
+#include <assert.h> 
+
+float *create_rand_nums(int num_elements) { 
+    float *rand_nums = (float *)malloc(sizeof(float) * num_elements); 
+    assert(rand_nums != NULL); 
+    int i; 
+    for (i = 0; i < num_elements; i++) { 
+        rand_nums[i] = rand() % num_elements; 
+    } 
+    return rand_nums; 
+}
+ 
+int main(int argc, char *argv[])  { 
+    int num_elements = atoi(argv[1]);
+    
+    int tag = 1;
+    MPI_Status Stat;
+    MPI_Init(NULL, NULL); 
+    int world_size;
+    MPI_Comm_size(MPI_COMM_WORLD, &world_size); 
+    int world_rank;
+    MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);
+
+    int num_elements_per_proc = num_elements / world_size;
+
+    float *rand_nums = NULL;
+
+    rand_nums = create_rand_nums(num_elements);
+    int i;
+    for (i = 0; i < num_elements; i++) {
+        printf("elemen ke-%d: %f\n", i, rand_nums[i]);
+    }
+
+    // TODO:
+    // 1. buat elemen randomm
+    // 2. bagi elemen tersebut ke dalam bucket (jumlah bucket = world_size)
+    // 3. kirim ukuran bucket serta isi bucket ke proses yang sessuai
+    // 4. urutkan masing masing bucket di tiap proses
+    // 5. kirim kembali bucket yang terurut ke proses 0
+    // 6. gabungkan bucket tersebut menjadi satu array
+
+
+
+    // Create random elements
+    // float *rand_nums = NULL;
+    // if (world_rank == 0) {
+    //     int i, j;
+    //     rand_nums = create_rand_nums(num_elements);
+
+    //     for (i = 0; i < num_elements; i++) {
+    //         printf("%d\n", rand_nums[i]);
+    //     }
+        
+    //     // Send sub elements to every process
+    //     int counter = 0;
+
+    //     for (i = 0; i < world_size; i++) {
+    //         float *sub_rand_nums = (float *)malloc(sizeof(float) * num_elements_per_proc);
+    //         for (j = 0; j < num_elements_per_proc; j++) {
+    //             sub_rand_nums[j] = 1;
+    //             counter++;
+    //         }
+    //         MPI_Send(sub_rand_nums, num_elements_per_proc, MPI_FLOAT, i, tag, MPI_COMM_WORLD);
+    //     }
+    // }
+
+    // float *sub_rand_nums = (float *)malloc(sizeof(float) * num_elements_per_proc);
+    // MPI_Recv(sub_rand_nums, num_elements_per_proc, MPI_FLOAT, 0, tag, MPI_COMM_WORLD, &Stat);
+
+    // printf("From procces %d\n", world_rank);
+    // int i;
+    // for (i = 0; i < num_elements_per_proc; i++) {
+    //     printf("elemen ke-%d: %d\n", i, sub_rand_nums[i]);
+    // }
+    MPI_Finalize();
+}
-- 
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