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/**********************************************************************
TRAN_Distribute_Node.c:
TRAN_Distribute_Node.c is a subroutine to set data for the MPI calculation.
to the electrodes.
Log of TRAN_Distribute_Node.c:
11/Dec/2005 Released by H.Kino
***********************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
void TRAN_Distribute_Node(int Start,int End,
int numprocs,
/* output */
int *IDStart,
int *IDEnd)
{
int i;
for (i=0;i<numprocs;i++) {
IDStart[i] = Start + (End+1-Start)*i/(numprocs);
IDEnd[i] = Start + (End+1-Start)*(i+1)/(numprocs)-1;
if (IDStart[i] >IDEnd[i]) {
IDStart[i]=-1;
IDEnd[i]= -1;
}
}
/* check consistency */
/*
for (i=0;i<numprocs-1;i++) {
if ( IDStart[i+1]!=(IDEnd[i]+1) ) {
printf("error i=%d IDEnd[i]=%d IDStart[i+1]=%d\n",i,IDEnd[i],IDStart[i+1]);fflush(stdout);
}
}
*/
/*
printf("IDStart ");
for (i=0;i<numprocs;i++) {
printf("%3d ",IDStart[i]);fflush(stdout);
}
printf("\n");
printf("IDEnd ");
for (i=0;i<numprocs;i++) {
printf("%3d ",IDEnd[i]);fflush(stdout);
}
printf("\n");
printf("IDEnd-IDStart+1 ");
for (i=0;i<numprocs;i++) {
printf("%3d ",IDEnd[i]-IDStart[i]+1);fflush(stdout);
}
printf("\n");
*/
}
void TRAN_Distribute_Node_Idx( int Start,
int End,
int numprocs,
int eachiwmax,
/* output */
int **Idxlist )
{
int *start, *end;
int ID;
int i;
start = (int*)malloc(sizeof(int)*numprocs);
end = (int*)malloc(sizeof(int)*numprocs);
TRAN_Distribute_Node(Start,End,numprocs,start,end);
for (ID=0;ID<numprocs;ID++) {
if (eachiwmax < end[ID]-start[ID]+1 ) {
printf("error in TRAN_Distribute_Node_Idx\n");
exit(0);
}
for (i=0;i<eachiwmax; i++) Idxlist[ID][i]=-1; /* initialize */
for (i=start[ID];i<=end[ID];i++) {
Idxlist[ID][i-start[ID]] = i; /* set */
}
}
free(end);
free(start);
}
#if 0
main()
{
int IDStart[100];
int IDEnd[100];
int **Idx;
int numprocs=13;
int i,j;
int idxstart,idxend;
int rowmax;
idxstart=0;
idxend=15;
TRAN_Distribute_Node(idxstart,idxend,numprocs,IDStart,IDEnd);
rowmax = (idxend-idxstart+1)/numprocs+1;
printf("max=%d\n",rowmax);
Idx = (int**)malloc(sizeof(int*)*numprocs);
for (i=0;i<numprocs;i++) {
Idx[i]= (int*)malloc(sizeof(int*)*rowmax);
}
TRAN_Distribute_Node_Idx(idxstart,idxend,numprocs,rowmax, Idx);
for (i=0;i<numprocs;i++) {
for (j=0;j<rowmax;j++) {
printf("%d ", Idx[i][j]);
}
printf("\n");
}
for (i=0;i<numprocs;i++) {
free(Idx[i]);
}
free(Idx);
}
#endif
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