Problem with the function pdlacpy/MKL.

[GbX4GNh0]

Hello!

I have a matrix
A =| 0 1 2 |
|3 4 5 |
| 6 7 8|

and I want to copy the first two columns to another matrix B like this
B =| * 0 1|
|* 3 4|
| * 7 8 |



I tried to do that using the library pdlacpy ( http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-6668F062-6C50-4AA3-ADC0-2C66D8EDD9BC.htm) but the code does not run. I think that I didn't define correctly the parameters descea, desceb ( which I don't understand ).

The code is:

#include <stdio.h>              /* I/O lib         ISOC  */
#include <stdlib.h>             /* Standard Lib    ISOC  */
#include <mkl.h>
#include "mkl_scalapack.h"

int main()
{	
double A[9]={0, 1,2,3,4,5,6,7,8};
	double B[9];
	
	int m=3, n=2, d=1;
		char *uplo = "All";

	pdlacpy(uplo, &m, &n, A, 0, 0, &n, B, 0, &d, &n);

	for(i=0; i<3; i++){
		for(j=0; j<3; j++){
			printf("%lf \t", B[i*3+j]);
		}
			printf("\n");
}

Please I would like to ask if you could help me with this.
Thank you very much.

[Smac89]

Read the source, it describes the parameters:
http://www.netlib.org/scalapack/explore-html/da/dc2/pdlacpy_8f_source.html

Also why scala? How are you sure scala code will work in c? Are you using an emulator of some sort to run this?