Using BLACS and ScaLAPACK in c language

phaser75 · ‎10-07-2009

I want to use BLACS(not BLAS) and ScaLapack. Since BLACS routines (blacs_pinfo, blacs_gridinit etc.) are Fortran routine, I made my code using mixed-language support. But it doesn't work.

If I want to use them in c language, which library or include files are needed?

I already linked-lmkl_blacs_intelmpi_ilp64 and added #include "mkl.h" in my c code.

TimP · ‎10-07-2009

Why not try the link advisor tool on the header page of this forum?

sozmenproyatech_com · ‎10-19-2009

Quoting - phaser75

I want to use BLACS(not BLAS) and ScaLapack. Since BLACS routines (blacs_pinfo, blacs_gridinit etc.) are Fortran routine, I made my code using mixed-language support. But it doesn't work.
If I want to use them in c language, which library or include files are needed?

I already linked-lmkl_blacs_intelmpi_ilp64 and added #include "mkl.h" in my c code.

Hi,

first of all, get the list of required libraries from link advisor tool which is located in this forum..
then include mkl_scalapack.h file to get the function prototypes...

and one more thing..for the BLACS funtions like (blacs_pinfo, etc.) use the following scheme of prototypes;

void Cblacs_get (int context, int request, int* value);
void Cblacs_gridinfo (int context, int* np_row, int* np_col, int* my_row, int* my_col);

This way I can call BLACS functions from my c code..

Actually, I dont use mkl_scalapack.h file and define my own declarations as I said above....It is your choice..