[mvapich-discuss] [MVAPICH2 0.9.5] Unaligned accesses on IA64 platforms

[Yann K.]

Hello everybody,

I wanted to know if anybody had unaligned accesses using osu/gen2 driver 
with DDR boards on IA64 ?
Hunting for the unaligned accesses on Linux, I got the following :

+ 
/yann/SOUCHES/mvapich2-0.9.5/src/mpid/osu_ch3/src/ch3u_handle_recv_pkt.c:342

+ here, we're trying to update a request status, by putting an MPI_Aint 
(MPIDI_msg_sz_t, data_sz) into an int status/count. On IA64, MPI_Aint is 
a long. That's were the u.a. comes from.

Did anybody solved this issue or have propositions ?

Y



-- 
Yann Kalemkarian
HPC Software Engineer
Open Software R&D
Bull, Architect of an Open World TM
Phone: +33 4 7629 7393
www.bull.com