topic Thanks! I've missed that. now in Intel® Fortran Compiler

mkl95_LAPACK produces segmentation fault (dgesv)

zuch — Wed, 02 Apr 2014 18:40:09 GMT

When I call "dgesv" routine from mkl library with fortran 95 interface I get segmentation fault.

call dgesv( adns, rhs , ipiv , info ) ! forrtl: severe (174): SIGSEGV, segmentation fault occurred

call dgesv( n, nrhs, adns, max(1,n), ipiv, rhs, max(1,n), info ) ! F77 works fine

ifort -V
Intel(R) Fortran Intel(R) 64 Compiler XE for applications running on Intel(R) 64, Version 14.0.2.139 Build 20140121
Copyright (C) 1985-2014 Intel Corporation. All rights reserved.

compiler flags: ifort main.f90 -mkl -lmkl_lapack95_lp64

If you wish to call the F95

mecej4 — Wed, 02 Apr 2014 18:59:00 GMT

If you wish to call the F95 generic name, which is the one with optional arguments, use the generic name, gesv, and not the specific name, dgesv, and make sure that you have provided the necessary interface (by including USE MKL95_LAPACK in every routine that calls a Lapack95/Blas95 routine by its generic name). The fact that you ran into a seg-fault indicates that your code does not contain such an interface, causing the subroutine to be called with mismatched number/types of arguments.

If you wish to call the F77 specific name, dgesv, provide all the arguments specified in the argument list for the subroutine.

Thanks! I've missed that. now

zuch — Wed, 02 Apr 2014 19:05:16 GMT

Thanks! I've missed that. now it works