topic Re: MKL and Fujitsu Fortran90 in Intel® oneAPI Math Kernel Library

MKL and Fujitsu Fortran90

henry_leyh — Fri, 29 Oct 2004 12:32:58 GMT

Hi,
When I was trying to use a Fujitsu Fortran 6.2c compiled ARPACK/PARPACK with MKL, I found a problem with BLAS function dnrm2 (called by PARPACK's pdnorm2 function) returning a NaN. Running everything in a debugger showed that it seems thatBLAS's cutlo and cuthi are also NaN. Everything works fine when compiling ARPACK with Intel Fortran, though. Is it because calls from Fujitsu compiled code skip some kind of initialization in MKL? As I found, Netlib's BLAS dnrm2 initializes cutlo/cuthi with a DATA statement within the function.

Thanks and bye,
Henry

Re: MKL and Fujitsu Fortran90

Todd_R_Intel — Sat, 30 Oct 2004 06:57:24 GMT

Henry,

Thanks for the question. I know of no such special initialization that is performed when calling Intel MKL from the Intel compilers. I'll ask around to see if anyone has ideas. Have you submitted this as an issue at Intel premier support?

Todd

Re: MKL and Fujitsu Fortran90

Todd_R_Intel — Wed, 03 Nov 2004 12:05:16 GMT

Engineering verified that cutlo/cuthi are initialized in MKL just as on Netlib.

-Todd