[mpich-discuss] lnk 2019 error, hellow world on windows 7 (64bit), VS2008

[Jayesh Krishna]

Hi,

# Make sure that you installed the 64-bit version of MPICH2.
# Make sure that you select the "solution platform" in VS to be "x64" (Usually the default one is "Win32" . There should be a drop-down box on the top of the VS interface that allows you to select the "solution platform" - You might have to select "Configuration Manager" and create a new "Active Solution platform". You might find more help in the VS help docs.)
# Make sure that the paths specified to MPICH2 libs are correct.

-Jayesh

----- Original Message -----
From: "Ryan Price" <ryprice00 at gmail.com>
To: mpich-discuss at mcs.anl.gov
Sent: Sunday, May 1, 2011 6:08:14 PM
Subject: [mpich-discuss] lnk 2019 error, hellow world on windows 7 (64bit),	VS2008



Hi, 

I'm just trying to get a mpi hello world program up and running and can't seem to get it to build properly. I'm on windows7 using VS2008. 

I get this error: 
1>myprog.obj : error LNK2019: unresolved external symbol _MPI_Finalize referenced in function _main 
1>myprog.obj : error LNK2019: unresolved external symbol _MPI_Comm_size referenced in function _main 
1>myprog.obj : error LNK2019: unresolved external symbol _MPI_Comm_rank referenced in function _main 
1>myprog.obj : error LNK2019: unresolved external symbol _MPI_Init referenced in function _main 
1>E:\Visual Studio 2008\Projects\myprog\Debug\myprog.exe : fatal error LNK1120: 4 unresolved externals 

I've seen many posts with similar problems but unfortunately I haven't been able to solve the issue on my own. It looks like it's not seeing where my compiled mpi libs are but I have specified the MPICH2 libraries as "Additional dependencies" for the linker (set the path of MPICH2 libraries in "Additional library directories" and added mpi.lib as "Additional dependencies"). I have tried compiling with both VC++ and IntelC++, both of which have the directories for the include files and library files set under tools->options as well. 

Not sure what else to try. Any help is greatly appreciated. 

Thanks, 

Ryan 
_______________________________________________
mpich-discuss mailing list
mpich-discuss at mcs.anl.gov
https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss