[petsc-users] Debugging suggestions: GAMG

[Barry Smith]

   You should be able to use the option

 -fp_trap on 

to resolve this problem. I am working on a general fix but it is extensive and has to go into the master branch and cannot be back ported.

  Barry


> On Jun 13, 2020, at 3:06 PM, Sanjay Govindjee <s_g at berkeley.edu> wrote:
> 
> Not a lot of luck here; I guess I don't know how to set the break point correctly?
> 
> (gdb) b ieee_handler
> Function "ieee_handler" not defined.
> Make breakpoint pending on future shared library load? (y or [n]) y
> Breakpoint 1 (ieee_handler) pending.
> (gdb) c
> Continuing.
> 
> Thread 1 "feap" received signal SIGFPE, Arithmetic exception.
> 0x00007f8d1a422be1 in ieeeck_ () from /lib64/liblapack.so.3
> 
> 
> 
> On 6/13/20 9:04 AM, Barry Smith wrote:
>> You could try in gdb to put a break point in ieee_handler and find all the places it gets called, maybe this will lead to the location of the cause.
> 

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