I just finished helping a guy get AMBER compiling on a Ubuntu 11.10
system. In the process I learned that the configure script:
1) Sets the location of mpi.h to $MPI_HOME/include where MPI_HOME is either
defined or determined from the directory containing mpif90.
This does not work on Ubuntu if MPI has been installed through the OS:
Amazon Linux:
which mpif90
/usr/lib64/openmpi/bin/mpif90
which works
Ubuntu with explicitly installed MPI (my work system):
which mpif90
/usr/local/bin/mpif90
also works
Ubuntu:
which mpif90
/usr/bin/mpif90
which obviously doesn't work...
2) Linking order matters.
On this machine:
./cuda/cuda.a -lcurand -lcufft -lcudart
works
-lcurand -lcufft -lcudart ./cuda/cuda.a
does not work.
I'm happy to change configure to reflect #2 as that seems harmless. But
I'm awfully leery about addressing #1 as that seems fraught with peril.
Any ideas?
Scott
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Received on Fri Mar 09 2012 - 08:00:02 PST
