Showing posts with label g95 OSX PPC. Show all posts
Showing posts with label g95 OSX PPC. Show all posts

Sunday, April 15, 2007

WRFV22 g95 on Mac supporting programs

Previously, I reported that I had to use tcsh to run WRFV22. Turns out I can run in bash if I specifically set the stacksize and datasize as follows

ulimit -s 65536
ulimit -d unlimited

To go along with the configure.defaults additions for g95 on Mac PPC, here are the flags I used for NetCDF and MPICH to get everything working. Specific versions of these programs I used were 3.6.0-p1 for NetCDF and 1.2.5 for MPICH.

netcdf-3.6.0-p1

* I used tcsh for the compilation

setenv CC /usr/bin/gcc
setenv CPPFLAGS "-O -DNDEBUG -DpgiFortran"
setenv CFLAGS "-O"
setenv CXX /usr/bin/c++
setenv CXXFLAGS "-O"

setenv FC g95
setenv F77 g95
setenv F90 g95
setenv FFLAGS "-O3 -fno-second-underscore"
setenv FCFLAGS "-O3 -fno-second-underscore"
setenv F90FLAGS "-O3 -fno-second-underscore"

./configure
* I then edited "macros.make", adding:
FLIBS = -lSystemStubs
F90LIBS = -lSystemStubs

./make
./make test
[all tests were found to work]
make install


mpich-1.2.5

* I used tcsh for the compilation

setenv FC g95
setenv F90 g95
setenv RSHCOMMAND "/usr/bin/ssh"
setenv CC gcc
setenv CXX gcc
setenv LIBS "-lSystemStubs"
setenv FFLAGS "-fno-second-underscore"
setenv F90FLAGS "-fno-second-underscore"
setenv CFLAGS "-fno-common -DFORTRANUNDERSCORE"

./configure --with-device=ch_p4 --without-romio
./make

* On one Mac PPC machine, I had to add -lstdc++ to LIBS, but another failed to work if that was done

* Although mpich compiles fine, the example programs would not compile without manually adding the "-fno-second-underscore" flag. Example:


mpif77 -fno-second-underscore -c fpi.f
mpif77 -o fpi fpi.o