Hi all,
I have just bought a v20z bi-opteron from Sun and I am testing the first
pre-release of Solaris 10 with 64 bit support on the Opteron.
I installed the lam-7.1.1 using the native Sun compilers and 64 bit flags.
setenv CC cc
setenv CXX CC
setenv FC f95
setenv CFLAGS "-O -xtarget=opteron -xarch=amd64"
setenv CXXFLAGS "-O -xtarget=opteron -xarch=amd64"
setenv FFLAGS "-O -xtarget=opteron -xarch=amd64"
setenv LDFLAGS "-xtarget=opteron -xarch=amd64"
setenv CXXLDFLAGS "-xtarget=opteron -xarch=amd64"
Configure and make run like a charm.
Then mpicc or mpif77 invoke the compiler just fine:
valiron_at_h5 ~/mul > mpicc -xtarget=opteron -xarch=amd64 -c timing.c -showme
cc -I/usr/local/include -mt -xtarget=opteron -xarch=amd64 -c timing.c
valiron_at_h5 ~/mul > mpif77 -xtarget=opteron -xarch=amd64 -c xerbla.f -showme
f95 -I/usr/local/include -xtarget=opteron -xarch=amd64 -c xerbla.f
However the compilation step add an erroneous '-xtarget' option which is
rejected as a fatal error by the cc and f95 compilers:
valiron_at_h5 ~/mul > mpicc -xtarget=opteron -xarch=amd64 timing.c -showme
cc -I/usr/local/include -mt -xtarget=opteron -xarch=amd64 timing.c
-xtarget -lthread -L/usr/local/lib -llammpio -llamf77mpi -lmpi -llam
-laio -laio -lsocket -lnsl -lthread -lthread -ldl
valiron_at_h5 ~/mul > mpif77 xerbla.f -showme
f95 -I/usr/local/include -xtarget=opteron -xarch=amd64 xerbla.f -xtarget
-lthread -L/usr/local/lib -llammpio -llamf77mpi -lmpi -llam -laio -laio
-lsocket -lnsl -lthread -lthread -ldl
Did I made any mistake ? Is there any simple patch to fix this problem ?
Fortunately I can still link by pasting "by hand" the correct link
options and exercise the library.
The resulting LAM/MPI seems quite good on the biprocessor.
- MPI_Alltoall latency is about 7 microseconds
- Typical all2all throughput is over 500 MB/s, and peaks to about 800
MB/s for 64k buffers.
Pierre.
--
Soutenez le mouvement SAUVONS LA RECHERCHE :
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_/_/_/_/ _/ _/ Dr. Pierre VALIRON
_/ _/ _/ _/ Laboratoire d'Astrophysique
_/ _/ _/ _/ Observatoire de Grenoble / UJF
_/_/_/_/ _/ _/ BP 53 F-38041 Grenoble Cedex 9 (France)
_/ _/ _/ http://www-laog.obs.ujf-grenoble.fr
_/ _/ _/ mail: Pierre.Valiron_at_[hidden]
_/ _/ _/ Phone: +33 4 7651 4787 Fax: +33 4 7644 8821
_/ _/_/
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