[deal.II] Re: deal.II installation on cray XC50 giving MPI_VERSION=0.0

2020-02-06 Thread vachan potluri 

>
>  If you know to which standard the MPI installation is conforming, you 
> could try to set it via
> cmake -DMPI_VERSION=... 
> yourself.

The MPI version is 3.1. But will this be of use? After all, the include 
paths, linker flags and library variables will still be blank.


But separately, we try to obtain the MPI version from the file mpi.h via 
> the 
> following cmake code in cmake/modules/FindMPI.h

I tried this. The mpi.h file is present in 
/opt/cray/pe/mpt/default/gni/mpich-gnu/5.1/include. So I modified my cmake 
invocation as follows.
cmake -DCMAKE_INSTALL_PREFIX=~/bin/dealii-9.1.1 \
-DPREFIX_PATH=/opt/cray/pe \
-DWITH_MPI=ON \
-DMPI_DIR=/opt/cray/pe/mpt/default/gni/mpich-gnu/5.1 \

-DMPI_CXX_INCLUDE_PATH=/opt/cray/pe/mpt/default/gni/mpich-gnu/5.1/include \
-DCMAKE_CXX_COMPILER=/opt/cray/pe/craype/2.5.13/bin/CC \
-DCMAKE_C_COMPILER=/opt/cray/pe/craype/2.5.13/bin/cc \
-DCMAKE_Fortran_COMPILER=/opt/cray/pe/craype/2.5.13/bin/ftn 
\
-DWITH_LAPACK=OFF 
-DLAPACK_DIR=/opt/cray/pe/libsci/17.12.1/GNU/6.1/x86_64 \
-DWITH_PETSC=OFF -DPETSC_DIR=$PETSC_DIR -DPETSC_ARCH=$PETSC_ARCH \
-DWITH_P4EST=OFF -DP4EST_DIR=~/bin/p4est-2.2 \
~/source/dealii-9.1.1

The output still shows this message:
-- Include 
/home/ComptGasDynLab/vachanpotluri/source/dealii-9.1.1/cmake/configure/configure_1_mpi.cmake
-- MPI_MPI_H not found! Call:
-- FIND_FILE(MPI_MPI_H NAMES mpi.h HINTS)
--   MPI_VERSION: 0.0
--   MPI_LIBRARIES: 
--   MPI_INCLUDE_DIRS: 
--   MPI_USER_INCLUDE_DIRS: 
--   MPI_CXX_FLAGS: 
--   MPI_LINKER_FLAGS: 
-- Found MPI
-- DEAL_II_WITH_MPI successfully set up with external dependencies.

and the detailed log still shows blanks:
#DEAL_II_WITH_MPI set up with external dependencies
#MPI_VERSION = 0.0
#MPI_DIR = /opt/cray/pe/mpt/default/gni/mpich-gnu/5.1
#MPI_C_COMPILER = /opt/cray/pe/craype/2.5.13/bin/cc
#MPI_CXX_COMPILER = /opt/cray/pe/craype/2.5.13/bin/CC
#MPI_Fortran_COMPILER = /opt/cray/pe/craype/2.5.13/bin/ftn
#MPI_CXX_FLAGS = 
#MPI_LINKER_FLAGS = 
#MPI_INCLUDE_DIRS = 
#MPI_USER_INCLUDE_DIRS = 
#MPI_LIBRARIES = 

Even after giving the MPI_CXX_INCLUDE_PATH hint, why is cmake not able to 
detect the version? Am I missing something?

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Re: [deal.II] deal.II installation on cray XC50 giving MPI_VERSION=0.0

2020-02-06 Thread Wolfgang Bangerth 

On 2/6/20 6:18 AM, Daniel Arndt wrote:


You can probably tell better than any of us if this works. Just try. It might 
quite well be that the compiler doesn't need any extra flags for MPI. Also, it 
looks like the MPI version could not be detected. This implies that the 
library doesn't use newer features but should still work. If you know to which 
standard the MPI installation is conforming, you could try to set it via


cmake -DMPI_VERSION=...

yourself.
If there any more problems, feel free to tell us.


But separately, we try to obtain the MPI version from the file mpi.h via the 
following cmake code in cmake/modules/FindMPI.h:


DEAL_II_FIND_FILE(MPI_MPI_H
  NAMES mpi.h
  HINTS ${MPI_CXX_INCLUDE_PATH} ${MPI_C_INCLUDE_PATH}
  )
IF(NOT MPI_MPI_H MATCHES "-NOTFOUND" AND NOT DEFINED MPI_VERSION)
  FILE(STRINGS "${MPI_MPI_H}" MPI_VERSION_MAJOR_STRING
REGEX "#define.*MPI_VERSION")
  STRING(REGEX REPLACE "^.*MPI_VERSION[ ]+([0-9]+).*" "\\1"
MPI_VERSION_MAJOR "${MPI_VERSION_MAJOR_STRING}"
)
  FILE(STRINGS ${MPI_MPI_H} MPI_VERSION_MINOR_STRING
REGEX "#define.*MPI_SUBVERSION")
  STRING(REGEX REPLACE "^.*MPI_SUBVERSION[ ]+([0-9]+).*" "\\1"
MPI_VERSION_MINOR "${MPI_VERSION_MINOR_STRING}"
)
  SET(MPI_VERSION "${MPI_VERSION_MAJOR}.${MPI_VERSION_MINOR}")
ENDIF()


It would be interesting to see why that files. Can you try and find out which 
mpi.h on your system is being used, and attach it to a reply?


Best
 W.

--

Wolfgang Bangerth  email: bange...@colostate.edu
   www: http://www.math.colostate.edu/~bangerth/

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Re: [deal.II] deal.II installation on cray XC50 giving MPI_VERSION=0.0

2020-02-06 Thread Daniel Arndt 
Vachan,

You can probably tell better than any of us if this works. Just try. It
might quite well be that the compiler doesn't need any extra flags for MPI.
Also, it looks like the MPI version could not be detected. This implies
that the library doesn't use newer features but should still work. If you
know to which standard the MPI installation is conforming, you could try to
set it via

cmake -DMPI_VERSION=...

yourself.
If there any more problems, feel free to tell us.

Best,
Daniel

On Thu, Feb 6, 2020, 1:10 AM vachan potluri 
wrote:

> Hello,
>
> I am trying to install deal.II on a cray XC50 supercomputer.
>
> cmake -DCMAKE_INSTALL_PREFIX=~/bin/dealii-9.1.1 \
> -DPREFIX_PATH=/opt/cray/pe \
> -DCMAKE_CXX_COMPILER=/opt/cray/pe/craype/2.5.13/bin/CC \
> -DWITH_MPI=ON \
> -DWITH_PETSC=OFF -DPETSC_DIR=$PETSC_DIR -DPETSC_ARCH=$PETSC_ARCH \
> -DWITH_P4EST=ON -DP4EST_DIR=~/bin/p4est-2.2 \
> ~/source/dealii-9.1.1
>
> I have attached detailed.log and summary.log. Although the configuring
> exits without errors, I can see in detailed.log that MPI_VERSION was not
> detected correctly. The compilers were correctly detected. All other
> variables are just blanks. The relevant snippet of detailed.log is as
> follows:
>
> #DEAL_II_WITH_MPI set up with external dependencies
> #MPI_VERSION = 0.0
> #MPI_C_COMPILER = /opt/cray/pe/craype/2.5.13/bin/cc
> #MPI_CXX_COMPILER = /opt/cray/pe/craype/2.5.13/bin/CC
> #MPI_Fortran_COMPILER = /opt/cray/pe/craype/2.5.13/bin/ftn
> #MPI_CXX_FLAGS =
> #MPI_LINKER_FLAGS =
> #MPI_INCLUDE_DIRS =
> #MPI_USER_INCLUDE_DIRS =
> #MPI_LIBRARIES =
>
> Is this an issue? How to fix this? I had loaded cray-mpich module before
> invoking cmake and switched PrgEnv-cray with PrgEnv-gnu.
>
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> 
> .
>

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