Charm++ parallel programming system

[Gengbin Zheng <gzheng AT illinois.edu>]

Looks like you are running in standalone mode of SMP.
I don't think it is thoroughly tested, but I just fixed the CmiFree
for standalone mode. Please try again.

Gengbin


On Sun, Jul 8, 2012 at 5:49 PM, Tom Quinn 
<trq AT astro.washington.edu>
 wrote:
> I'm running an ibverbs standalone for debugging, but I don't get very far
> because of a segfault.  valgrind reports the following.
>
> Line 2529 of machine-ibverbs.c has a simple
>
>   if (Cmi_charmrun_fd == -1) return malloc(size);
>
> whereas infi_CmiFree() assumes the pointer has been advanced to allow for
> the header.
>
> Charm++> Running on 1 unique compute nodes (16-way SMP).
> ==10120== Invalid read of size 8
> ==10120==    at 0x77CB4E: infi_CmiFree (machine-ibverbs.c:2641)
> ==10120==    by 0x7843E6: CmiFree (convcore.c:2945)
> ==10120==    by 0x79E287: cpuTopoHandler(void*) (cputopology.C:265)
> ==10120==    by 0x784DB2: CmiSendReduce (convcore.c:2363)
> ==10120==    by 0x784C1B: CmiGlobalReduce (convcore.c:2383)
> ==10120==    by 0x78478C: CmiReduce (convcore.c:2405)
> ==10120==    by 0x79FE15: LrtsInitCpuTopo (cputopology.C:559)
> ==10120==    by 0x79F805: CmiInitCPUTopology (cputopology.C:629)
> ==10120==    by 0x693B4D: _initCharm(int, char**) (init.C:1264)
> ==10120==    by 0x780EC4: ConverseInit (machine.c:2881)
> ==10120==    by 0x6B0566: main (main.C:18)
> ==10120==  Address 0x5a38648 is 8 bytes before a block of size 68 alloc'd
> ==10120==    at 0x4A0776F: malloc (vg_replace_malloc.c:263)
> ==10120==    by 0x77CA1D: infi_CmiAlloc (machine-ibverbs.c:2529)
> ==10120==    by 0x784320: CmiAlloc (convcore.c:2844)
> ==10120==    by 0x79FDB0: LrtsInitCpuTopo (cputopology.C:550)
> ==10120==    by 0x79F805: CmiInitCPUTopology (cputopology.C:629)
> ==10120==    by 0x693B4D: _initCharm(int, char**) (init.C:1264)
> ==10120==    by 0x780EC4: ConverseInit (machine.c:2881)
> ==10120==    by 0x6B0566: main (main.C:18)
>
>
> Tom Quinn       Astronomy, University of Washington
> Internet:       
> trq AT astro.washington.edu
> Phone:          206-685-9009
> _______________________________________________
> charm mailing list
> charm AT cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/charm
> _______________________________________________
> ppl mailing list
> ppl AT cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/ppl