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/*
Make an identity matrix.
*/
#include <stdlib.h>
#include <stdio.h>
#include <csdp/declarations.h>
void make_i(
struct blockmatrix A)
{
int blk,i,j;
double *p;
for (blk=1; blk<=A.nblocks; blk++)
{
switch (A.blocks[blk].blockcategory)
{
case DIAG:
p=A.blocks[blk].data.vec;
for (i=1; i<=A.blocks[blk].blocksize; i++)
p[i]=1.0;
break;
case MATRIX:
p=A.blocks[blk].data.mat;
#pragma omp parallel for schedule(dynamic,64) default(none) private(i,j) shared(blk,p,A)
for (j=1; j<=A.blocks[blk].blocksize; j++)
for (i=1; i<=A.blocks[blk].blocksize; i++)
p[ijtok(i,j,A.blocks[blk].blocksize)]=0.0;
for (i=1; i<=A.blocks[blk].blocksize; i++)
p[ijtok(i,i,A.blocks[blk].blocksize)]=1.0;
break;
default:
printf("make_i illegal block type\n");
exit(206);
};
}
}
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