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/*
Zero out a block matrix.
*/
#include <stdlib.h>
#include <stdio.h>
#include <csdp/declarations.h>
void zero_mat(
struct blockmatrix A)
{
int i,j;
int blk;
/*
* Loop through the blocks, zeroing one at a time.
*/
for (blk=1; blk<=A.nblocks; blk++)
{
/*
* Zero out block i.
*/
switch (A.blocks[blk].blockcategory)
{
case DIAG:
for (i=1; i<=A.blocks[blk].blocksize; i++)
{
A.blocks[blk].data.vec[i]=0.0;
};
break;
case MATRIX:
#pragma omp parallel for schedule(dynamic,64) default(none) shared(A,blk) private(j,i)
for (j=1; j<=A.blocks[blk].blocksize; j++)
for (i=1; i<=A.blocks[blk].blocksize; i++)
A.blocks[blk].data.mat[ijtok(i,j,A.blocks[blk].blocksize)]=0.0;
break;
default:
printf("Illegal block type \n");
exit(206);
};
};
}
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