[petsc-users] EXTERNAL: Re: Upgrading from petsc 3.2-p7 to 3.3-p5

[Satish Balay]

> I get a non-zero error code from the MatAssemblyBegin/End but nothing gets printed.


1. It appears you are not using CHKERRQ() on your calls to PETSc routines.

[yeah its combersome from fortran - so the petsc examples don't have
it - but that will print the complete error trace].

2. The latest petsc version is 3.4 - suggest upgrading your code to it.

3. from http://www.mcs.anl.gov/petsc/documentation/changes/33.html

>>>>
Preallocation routines now automatically set
MAT_NEW_NONZERO_ALLOCATION_ERR, if you intentionally preallocate less
than necessary then use
MatSetOption(mat,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE) to
disable the error generation.
<<<<

Satish


On Thu, 23 Jan 2014, Wadud.Miah at awe.co.uk wrote:

> Hi Matthew,
> 
> I get a non-zero error code from the MatAssemblyBegin/End but nothing gets printed. Am I missing something in 3.3-p5? Please reply to wadud.miah at awe.co.uk with a reply as my email header gets re-written for some strange reason!
> 
> Regards,
> Wadud.
> 
> ________________________________
> From: Matthew Knepley [mailto:knepley at gmail.com]
> Sent: 23 January 2014 16:21
> To: Miah Wadud AWE
> Cc: petsc-users at mcs.anl.gov
> Subject: EXTERNAL: Re: [petsc-users] Upgrading from petsc 3.2-p7 to 3.3-p5
> 
> On Thu, Jan 23, 2014 at 10:05 AM, <Wadud.Miah at awe.co.uk<mailto:Wadud.Miah at awe.co.uk>> wrote:
> Hello petsc users,
> 
> I have upgraded to PETSc 3.3-p5 from 3.2-p7 and my matrix assembly is failing (MatAssemblyBegin and MatAssemblyEnd). I am using MatMPIAIJSetPreallocation prior to calling MatSetValues. I have looked at the 3.3-p5 changelog and cannot find anything. Any help will be greatly appreciated. Please reply to wadud.miah at awe.co.uk<mailto:wadud.miah at awe.co.uk> with a reply as my email header gets re-written for some strange reason!
> 
> Always send the full error message.
> 
>    Matt
> 
> 
> Regards,
> Wadud.
> 
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