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gfortran and lapack problem
- From: Christian <cdeb77 at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Mon, 20 Oct 2014 02:35:30 -0400
- Subject: gfortran and lapack problem
- Authentication-results: sourceware.org; auth=none
Hi all,
I'm having problems setting up gfrortran with lapack. I installed
lapack and liblapack-devel from cygwin, but when I try to compile I
cannot get any result, although I don't get any error. This a very
simple code I'm trying to compile:
PROGRAM MyTest
IMPLICIT NONE
DOUBLE PRECISION :: A(2,2) = RESHAPE( (/1, 2, 3, 4/), (/2,2/) )
DOUBLE PRECISION :: B(2,1) = RESHAPE( (/5, 6/), (/2,1/) )
INTEGER, DIMENSION(2) :: ipiv
INTEGER :: n, info
EXTERNAL DGESV
PRINT *,'Printing the results'
CALL DGESV(2, 1, A, 2, ipiv, B, 2, info)
PRINT *, info
PRINT *,'End printing'
END PROGRAM MyTest
I compile it as gfortran MyTest.f90 -o MyTest -llapack -lblas. I don't
get any errors (it says "compilation finished"), but the output file
doesn't print anything (neither the strings, or the variable info). If
I comment the "CALL DGESV" line, it does print everything (with
info=0, of course).
Am I doing something wrong or is there any problem in my lapack installation?
Best,
C
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