[mpich-discuss] MPI problem on BGP/ZeptoOS
Francisco Javier García Blas
fjblas at arcos.inf.uc3m.es
Tue Jan 27 08:47:26 CST 2009
I have a problem with ZeptoOS on BGP. Some weeks ago, I updated to the
last version of ZeptoOS (now I am using version the lasted version,
2509). ZeptoOS kernel images look work fine all the time.
First, I checked this new version submiting a simple mpi test
(included in the comm folder of ZeptoOS). It worked fine.
My next test consisted in running a I/O job (BTIO benchmark, 64
processes, type B). I found two bugs in ROMIO: the first one calling
MPI_Type_get_envelope primitive (the nints parameter returns a wrong
value in flatten.c) and the second one inside ad_write_coll.c (locked
Additionally, I tried to compile my own DCMF, CCMI and MPICH
libraries but I did not resolve the problem.
I guess the problem could be inside MPI's DCMF libraries because all
MPID files are the same on both versions of MPID.
If you need, I could give you more details off-line.
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