[mvapich-discuss] Compiling MVAPICH2-1.9a on Host without IB

[Jiri Kraus]

Hi Sreeram,

Thanks for pointing me to this. The configure with the OFA-IB-CH3 interface fails because libibverbs is missing as the Host dos not have a Infiniband Card. Building libibverbs anyway solved the problem for me as I only need mvapich for intra-node communication on this host.

Thanks

Jiri

From: sreeram.chowdary at gmail.com [mailto:sreeram.chowdary at gmail.com] On Behalf Of sreeram potluri
Sent: Dienstag, 25. September 2012 17:45
To: Jiri Kraus
Cc: mvapich-discuss at cse.ohio-state.edu
Subject: Re: [mvapich-discuss] Compiling MVAPICH2-1.9a on Host without IB

Jiri,

Support for communication from GPU memory is currently not available with the OFA-IB-Nemesis interface. Can you try building with the OFA-IB-CH3 interface as below

./configure --with-device=ch3:mrail --with-rdma=gen2 --enable-cuda --with-cuda=/usr/local/cuda-5.0 --enable-shared --prefix=<...>

or you can skip the device option as well as OFA-IB-CH3 is the default

./configure --enable-cuda --with-cuda=/usr/local/cuda-5.0 --enable-shared --prefix=<...>

The following sections of the user guide might be useful

http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.9a.html#x1-100004.4
http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.9a.html#x1-140004.5

Let us know if you see any further issues.

Sreeram Potluri
On Tue, Sep 25, 2012 at 11:08 AM, Jiri Kraus <jkraus at nvidia.com<mailto:jkraus at nvidia.com>> wrote:
Hi,

I have some trouble compiling MVAPICH2-1.9a on a Host without an IB interface. I used

./configure --enable-cuda --with-cuda=/usr/local/cuda-5.0 --enable-shared --with-device=ch3:nemesis --prefix=<...>

to configure but the build with gcc 4.6.2 on openSUSE 12.1 (x86_64) failed during compilation of
mvapich2-1.9a/src/mpid/ch3/channels/nemesis/nemesis/netmod/tcp/tcp_send.c
with
tcp_send.c: In function âMPID_nem_tcp_iStartContigMsgâ:
tcp_send.c:317:31: error: incompatible types when assigning to type âvoid *â from type âMPIDI_CH3_PktGeneric_tâ
tcp_send.c: In function âMPID_nem_tcp_iStartContigMsg_pausedâ:
tcp_send.c:456:31: error: incompatible types when assigning to type âvoid *â from type âMPIDI_CH3_PktGeneric_tâ
tcp_send.c: In function âMPID_nem_tcp_iSendContigâ:
tcp_send.c:604:31: error: incompatible types when assigning to type âvoid *â from type âMPIDI_CH3_PktGeneric_tâ
tcp_send.c: In function âMPID_nem_tcp_SendNoncontigâ:
tcp_send.c:732:31: error: incompatible types when assigning to type âvoid *â from type âMPIDI_CH3_PktGeneric_tâ
make[8]: *** [tcp_send.o] Error 1

Any help is appreciated.

Thanks

Jiri
NVIDIA GmbH, Wuerselen, Germany, Amtsgericht Aachen, HRB 8361
Managing Director: Karen Theresa Burns

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