[CMake] CMake and MPIF90

[Thompson, K T]

Hi Lucas,

Since you can build this code manually, try running 'make VERBOSE=1' from your CMake-based build and compare the flags and options that are used by CMake vs. what you would do w/o CMake.  This exercise should give you enough information to get the CMake-based build working by modifying CMAKE_Fortran_FLAGS, using add_definitions(), etc.

FWIW - In my project, we don't use mpif90.  Instead, we manually specify the MPI libraries that need to be linked.  Something like this:

add_executable( foo_exe foo.f90 )
target_link_libraries( foo_exe ${MPI_Fortran_LIBRARIES} )
set_target_properties( foo_exe PROPERTIES 
  LINKER_LANGUAGE Fortran 
  OUTPUT_NAME foo )

-kt
---
Kelly Thompson

> -----Original Message-----
> From: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] On Behalf Of
> Pettey . Lucas
> Sent: Thursday, April 25, 2013 3:11 PM
> To: cmake at cmake.org
> Subject: [CMake] CMake and MPIF90
> 
> Hello,
> 
> I am getting errors when I execute a simple "hello World" mpi program
> compiled using cmake.
> 
> I could not get the program to compile using various forms of
> FIND_PACKAGE(MPI REQUIRED), INCLUDE_DIRECTORIES(${MPI_INCLUDE_PATH}),
> TARGET_LINK_LIBRARIES(executable ${MPI_LIBRARIES}) and filling in flags
> manually for anything missing.
> 
> I then tried FC=mpif90 and the program compiled, but gave me upon execution
> a series of errors starting with:
> 
> [[INVALID],INVALID] ORTE_ERROR_LOG: Not found in file runtime/orte_init.c at
> line 121
> 
> The rest indicate that MPI is not being initialized properly.
> 
> As a sanity check, I compiled using mpif90 in the command line and
> everything worked fine.
> 
> Any ideas or links to documentation? I tried searching the wiki, but it is
> not very straightforward.
> 
> Thanks,
> Lucas
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