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<div>Hi Åsmund,</div>
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<div>Thank you for emailing us, but this email needs to go to MVAPICH team. The correct mailing list will be
<a href="mailto:mvapich-discuss@cse.ohio-state.edu">mvapich-discuss@cse.ohio-state.edu</a> in <a href="http://mvapich.cse.ohio-state.edu/mailinglists/">http://mvapich.cse.ohio-state.edu/mailinglists/</a>.</div>
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<div>Thanks,</div>
<div>Sangmin</div>
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<div>On Sep 9, 2014, at 2:32 PM, Åsmund Ervik <<a href="mailto:asmund.ervik@ntnu.no">asmund.ervik@ntnu.no</a>> wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">Hello all,<br>
<br>
I'm compiling mvapich2 on an old quirky cluster where I'm not root. After having problems with shared memory using mvapich2 with plain configure/make (I had to disable shared memory for any jobs doing allreduce), I decided to try to configure/make using --with-shared-memory=sysv
. This failed at the "make" step, with the following error:<br>
CC src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.lo<br>
src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.c: In function 'mv2_allocate_shm_local':<br>
src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.c:182: error: 'O_CREAT' undeclared (first use in this function)<br>
src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.c:182: error: (Each undeclared identifier is reported only once<br>
src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.c:182: error: for each function it appears in.)<br>
src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.c:182: error: 'O_RDWR' undeclared (first use in this function)<br>
src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.c:182: error: 'O_EXCL' undeclared (first use in this function)<br>
src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.c: In function 'mv2_rma_allocate_shm':<br>
src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.c:375: error: 'O_CREAT' undeclared (first use in this function)<br>
src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.c:375: error: 'O_RDWR' undeclared (first use in this function)<br>
make[2]: *** [src/mpid/ch3/channels/mrail/src/gen2/rdma_iba_1sc.lo] Error 1<br>
<br>
The full configure command was<br>
./configure --prefix=/home/asmunder/mvapich2-2.0 --with-ib-libpath=/cvos/shared/apps/ofed/1.3.1/lib64/ --with-ib-include=/cvos/shared/apps/ofed/1.3.1/include --with-shared-memory=sysv --enable-libpci<br>
<br>
<br>
In the end I traced this down to lines 22 and 26 in rdma_iba_1sc.c , which is an #ifdef that only includes fcntl.h (containing O_CREAT et al) when the flag _SMP_LIMIC_ is defined. Obviously this flag was not defined in my case. I removed these two lines, and
now configure/make works fine. <br>
<br>
Also, in the end, I found that this flag was not necessary, and that the correct and much simpler solution was to set the environment variable MV2_SHMEM_DIR to the correct path.<br>
<br>
Regards,<br>
Åsmund<br>
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