From 5375c3a0201139fbd5f5589e9614625f49a3ef89 Mon Sep 17 00:00:00 2001
From: 13513018 <13513018@ld5-01.if.itb.ac.id>
Date: Fri, 12 Feb 2016 15:04:33 +0700
Subject: [PATCH] bucket sort added
---
bucket | Bin 0 -> 13190 bytes
bucket.c | 132 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 132 insertions(+)
create mode 100755 bucket
create mode 100644 bucket.c
diff --git a/bucket b/bucket
new file mode 100755
index 0000000000000000000000000000000000000000..27646b19477ad447d515fcadb644199e46484036
GIT binary patch
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diff --git a/bucket.c b/bucket.c
new file mode 100644
index 0000000..85af08c
--- /dev/null
+++ b/bucket.c
@@ -0,0 +1,132 @@
+#include "mpi.h"
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+#include <assert.h>
+
+int main( int argc, char* argv[] )
+{
+ double starttime, endtime;
+ int proceso_id;
+ int num_element;
+ int n[1000];
+ int m;
+ int i,d,li,c;
+ unsigned int j;
+ char processor_name[MPI_MAX_PROCESSOR_NAME];
+ int namelen;
+ int numprocsused;
+ // Intiating parallel part
+ MPI_Status stat;
+ MPI_Init(NULL,NULL);
+
+ MPI_Comm_size(MPI_COMM_WORLD, &numprocsused);
+ MPI_Comm_rank(MPI_COMM_WORLD,&proceso_id);
+ MPI_Get_processor_name(processor_name, &namelen);
+ unsigned int receivedElement;
+ if(proceso_id == 0) {
+ // if it is main process
+ printf("Enter number of elements\n");
+ scanf("%d",&num_element);
+ printf("Enter %d integers\n",num_element);
+ for (i= 0; i < num_element; i++){
+ scanf("%d", &n[i]);
+ }
+
+ // starting time calculation of the sort
+ starttime = MPI_Wtime();
+
+ // min and max values are got
+ unsigned int min = n[0];
+ unsigned int max = n[0];
+ for(i=0; i < num_element; i++) {
+ if(n[i] < min) { min = n[i]; }
+ if(n[i] > max) { max = n[i]; }
+ }
+
+ // calculating how many numbers each bucket/process will get numbers
+ int elementQtyArray[numprocsused];
+ // default values
+ for(d=1; d < numprocsused; d++) {
+ elementQtyArray[d] = 0;
+ }
+ for(d=0; d < num_element; d++) {
+ int increaseOf = max/(numprocsused-1);
+ int iteration = 1;
+ int pridetas = 0;
+ for(j = increaseOf; j <= max; j = j + increaseOf) {
+ if(n[d] <= j) {
+ elementQtyArray[iteration]++;
+ pridetas = 1;
+ break;
+ }
+ iteration++;
+ }
+ if (pridetas == 1) {
+ elementQtyArray[iteration-1]++;
+ }
+ }
+
+ // Sending how many each process/bucket will get numbers
+ for(i=1; i<numprocsused; i++) {
+ MPI_Send(&elementQtyArray[i], 1, MPI_INT, i, -2, MPI_COMM_WORLD);
+ }
+
+ // doing the same, this time sending the numbers
+ for(d=0; d < num_element; d++) {
+ int increaseOf = max/(numprocsused-1);
+ int iteration = 1;
+ int issiunte = 0;
+ for (j = increaseOf; j <= max; j = j + increaseOf) {
+ if(n[d] <= j) {
+ MPI_Send(&n[d], 1, MPI_UNSIGNED, iteration, -4, MPI_COMM_WORLD);
+ issiunte = 1;
+ break;
+ }
+ iteration++;
+ }
+ if (issiunte == 1) {
+ MPI_Send(&n[d], 1, MPI_UNSIGNED, iteration-1, -4, MPI_COMM_WORLD);
+ }
+ }
+
+ // Getting back results and adding them to one array
+ int lastIndex = 0; int indexi = 0;
+ for(i=1; i < numprocsused; i++) {
+ unsigned int recvArray[elementQtyArray[i]];
+ MPI_Recv(&recvArray[0], elementQtyArray[i], MPI_UNSIGNED, i, 1000, MPI_COMM_WORLD, &stat);
+
+ if(lastIndex == 0) {
+ lastIndex = elementQtyArray[i];
+
+ }
+ for(j=0; j<elementQtyArray[i]; j++) {
+ n[indexi] = recvArray[j];
+
+ indexi++;
+
+ }
+
+ }
+
+
+
+ // stoping the time
+
+ endtime = MPI_Wtime();
+
+
+
+ // showing results in array
+ for(c = 0; c<num_element; c++){
+ printf("Hasil Sorting index - %d : %d ",c,n[c]);
+ }
+ // sorting results
+ printf("it took %f seconds \n", endtime-starttime);
+ printf("Numbers: %d \n", num_element);
+ printf("Processes: %d \n", numprocsused);
+ }
+ MPI_Finalize();
+ return 0;
+}
--
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