Hi all,<br>  I&#39;ve been beating my head on this for quite a while now.  I don&#39;t have this problem when running with 1,2, or 3 procs, however, once I get to 4 or beyond, I have a problem.<br><br>When I call malloc, I get this error:<br>

<br>txserver:11055 terminated with signal 11 at PC=2b46886bc18a SP=7fff20f51030.  Backtrace:<br>/apps/x86_64/mpi/openmpi/gcc-4.3.4/openmpi-1.4.3_oobpr/lib/libopen-pal.so.0(<b>opal_memory_ptmalloc2_int_malloc+0x54a</b>)[0x2b46886bc18a]<br>

/apps/x86_64/mpi/openmpi/gcc-4.3.4/openmpi-1.4.3_oobpr/lib/libopen-pal.so.0[0x2b46886bd4f3]<br>txserver[0x415769]<br>txserver[0x40da8c]<br>txserver[0x4344bb]<br>txserver[0x4351cd]<br>txserver[0x40e3d4]<br>/lib64/libc.so.6(__libc_start_main+0xf4)[0x2b468a5af994]<br>

txserver(_ZNSt8ios_base4InitD1Ev+0x39)[0x40c889]<br><br>However, only rank 0 calls this function.  Which is strange.  I can just put a dummy malloc in there (int * dummy = (int *)malloc(10);) for example, and it will still crash.<br>

<br>Again, this does not happen with n &lt; 4 procs.  The crash happens on rank 0, as it&#39;s the only rank that calls this code...<br><br>I&#39;m perplexed.<br><br>Thanks a lot,<br>J.D.<br><br>