Comments on: Compiling MUMPS 4.9.2 under Microsoft Visual Studio and Intel Fortran with GNU Make

By: Evgenii Rudnyi

Evgenii Rudnyi — Thu, 08 Dec 2011 09:26:00 +0000

I have never used WinMumps, sorry. You may want to this at the MUMPS discussion list.

By: erick

erick — Wed, 07 Dec 2011 14:13:19 +0000

Dear Dr. Evgenii Rudnyi,
Thank you very much for your contribution.Now i want to use the WinMumps on the windows plat. Is it sequential
version or parallel version？if I want to complie palallel version， what libraries do I need to add？

By: Evgenii Rudnyi

Evgenii Rudnyi — Thu, 10 Nov 2011 18:35:11 +0000

WinMumps allows you to compile MUMPS under Visual Studio provided that you have also Intel Fortran installed. MUMPS is written mostly in Fortran 90 and there are some funtions written in C (not C#).

By: carlos

carlos — Tue, 08 Nov 2011 23:01:55 +0000

Hi,

I did not understand the purpose of WinMumps. I can program in MUMPS within the VisualStudio 2010 C # Express?
Thank you.

By: Evgenii Rudnyi

Evgenii Rudnyi — Fri, 11 Mar 2011 18:19:29 +0000

I have just tried nm

$ nm libdmumps.lib | grep -iw _dmumps
U _DMUMPS
00013666 T _DMUMPS

So DMUMPS is in this lib. You may check with nm the object file that you want to link to make sure that there the name is exactly the same.

If you was able to link from C, then this must work for Fortran as well. When you compile the file, you obtain an object file and it is already programming language independent.

Try to compile from the command line, it is much easier than from GUI.

By: Martin

Martin — Tue, 08 Mar 2011 06:16:41 +0000

I’m getting an error about an unresolved external symbol “DMUMPS” in function “main_”. The files I linked were: libmetis.lib libmumps_common.lib mkl_intel_lp64.lib mkl_intel_thread.lib mkl_core.lib libiomp5md.lib fmpich2.lib dmumps_fortran_mp.lib. Even if I add libmpiseq.lib the error won’t go away.
When I take a look at the FORTRAN include files, I can’t find any reference to the function DMUMPS which is called from the main program. In the C example however, a declaration like this is contained in one of the include files.

By: Evgenii Rudnyi

Evgenii Rudnyi — Mon, 07 Mar 2011 18:57:30 +0000

I do not think so. I have never changed MUMPS files. As I have written, you can use nm to find it out where missing symbols are. What the error from the linker you get?

By: Martin

Martin — Mon, 07 Mar 2011 10:59:42 +0000

Mh I think one of the problems is that in the FORTRAN include files there’s no declaration of the DMUMPS subroutine, so that it can’t be found in the libs belonging to MUMPS. I tried to write one myself like

INTERFACE
SUBROUTINE DMUMPS(mumps_par) bind(C, name=”DMUMPS”)
INCLUDE ‘mpif.h’
INCLUDE ‘dmumps_struc.h’
TYPE(DMUMPS_STRUC) :: mumps_par
END SUBROUTINE DMUMPS
END INTERFACE

but it didn’t work out. I’ll keep an eye on this.

By: Evgenii Rudnyi

Evgenii Rudnyi — Wed, 02 Mar 2011 10:47:37 +0000

Martin, I have written a small text about nm

http://matrixprogramming.com/2011/03/using-nm-to-troubleshoot-linking-problems

By: Evgenii Rudnyi

Evgenii Rudnyi — Tue, 01 Mar 2011 15:07:56 +0000

My makefile produces the next command

ifort -o dsimpletest dsimpletest.o ../lib/libdmumps.lib ../lib/libmumps_common.lib libmetis.lib ../libseq/libmpiseq.lib mkl_intel_c.lib mkl_intel_thread.lib mkl_core.lib libiomp5md.lib -link -LIBPATH:../../../../ms/lib/bin/

but I do not have ifort right now and cannot say for sure whether it is working. Yet, I believe that it should, I think it was working that way. Just try to use ifort as a linker instead of cl and see what happens.