[Trilinos-Users] glibc detected in IFPack ILU compute()

[james williams]

On 07/25/2013 11:51 AM, Erik Boman wrote:
That fixed it!  Thanks

> Try |"ILU stand-alone" or ||"ILUT stand-alone" as the string to the 
> Ifpack factory to skip AdditiveSchwarz in serial.| I am not sure this 
> fixes your problem, but it's easy to try.
>
> Erik
>
> james williams wrote:
>> Hi All,
>>
>> I'm using the Ifpack factory class to build an ILU preconditioner for 
>> a serial code.  After creating and initializing the preconditioner 
>> from my FillCompleted EpetraCrs matrix, I call compute() and the 
>> program crashes with:
>>
>> *** glibc detected *** ./zoupa: free(): invalid next size (normal): 
>> 0x00000000069df2e0 ***
>> *** glibc detected *** ./zoupa: malloc(): memory corruption: 
>> 0x00000000069eeb10 ***
>>
>> When I run the code with valgrind, I get:
>>
>> ==9743== Invalid write of size 4
>> ==9743==    at 0xBBE0F0: Ifpack_ILU::Compute() (in 
>> /storage/jww/SIM_VERSIONS/IMEX_ML_SIM/zoupa)
>> ==9743==    by 0xB39F0C: 
>> Ifpack_AdditiveSchwarz<Ifpack_ILU>::Compute() (in 
>> /storage/jww/SIM_VERSIONS/IMEX_ML_SIM/zoupa)
>> ==9743==    by 0x4B09B2: compif_ (pass_A.cpp:62)
>> ==9743==    by 0x4C593D: stepper_ (stepper.f90:268)
>> ==9743==    by 0x486356: MAIN__ (ice.f90:220)
>> ==9743==    by 0x4DD639: main (in 
>> /storage/jww/SIM_VERSIONS/IMEX_ML_SIM/zoupa)
>> ==9743==  Address 0x744285c is 0 bytes after a block of size 63,516 
>> alloc'd
>>
>> This looks like writing off the end of the of the memory block, any 
>> ideas of why this could be happening?
>>
>> Additional notes:
>>
>> 1) The matrix is sparse, square, non-symmetric.
>>
>> 2) Using an ML preconditioner with the same matrix, and an analogous 
>> build process runs with no problems.
>>
>> Any insight into what could be going wrong is much appreciated,
>> James
>>
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>
>