[petsc-users] KSP breakdown in specific cluster (update)
TAY wee-beng
zonexo at gmail.com
Wed Apr 30 02:17:07 CDT 2014
Hi,
I switched to the GNU compiler v4.8.2 from intel and everything worked
fine. So guess I'll have to use GNU from now on.
Thank you
Yours sincerely,
TAY wee-beng
On 24/4/2014 2:19 PM, Jed Brown wrote:
> TAY wee-beng <zonexo at gmail.com> writes:
>
>> On 24/4/2014 9:41 AM, Barry Smith wrote:
>>> The numbers like
>>>
>>> sum = 1.9762625833649862e-323
>>>
>>> rho = 1.9762625833649862e-323
>>>
>>> beta = 1.600807474747106e-316
>>> omega = 1.6910452843641213e-315
>>> d2 = 1.5718032521948665e-316
>>>
>>> are nonsense. They would generally indicate that something is wrong, but unfortunately don’t point to exactly what is wrong.
>> Hi,
>>
>> In that case, how do I troubleshoot? Any suggestions?
> You have memory corruption. Use Valgrind, perhaps compiler checks like
> -fmudflap, and location watchpoints in the debugger.
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