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February 2012

33 participants
482 discussions

Re: [petsc-dev] Error with DMCompositeGetISLocalToGlobalMappings
by Jed Brown 03 Feb '12

03 Feb '12

1. Call DMSetUp(packer) once you are done adding DMs. I will make it automatic in petsc-dev. 2. Call PetscSubcommDestroy() to free unused memory. 3. I suggest running your experiments with less than 64 procs. On Fri, Feb 3, 2012 at 18:32, <domenico.borzacchiello(a)univ-st-etienne.fr>wrote: > Hi, > I'm getting a segmentation violation error when I use > DMCompositeGetISLocalToGlobalMappings on a DMComposite defined redundantly > on subsets of the PETSC_COMM_WORLD. I could reproduce the error in the > small code you can find here attached. It creates a PetsSubcomm from > PETSC_COMM_WORLD, then it defines a DMDA on the Subcomm->comm and finally > it packs it into a DMComposite. > I get this error whenever I call DMCompositeGetISLocalToGlobalMapping on a > DMComposite defined in such a way. > > I would be glad if you could give it a look. > Thank you > Domenico >

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Error with DMCompositeGetISLocalToGlobalMappings
by domenico.borzacchiello＠univ-st-etienne.fr 03 Feb '12

03 Feb '12

Hi, I'm getting a segmentation violation error when I use DMCompositeGetISLocalToGlobalMappings on a DMComposite defined redundantly on subsets of the PETSC_COMM_WORLD. I could reproduce the error in the small code you can find here attached. It creates a PetsSubcomm from PETSC_COMM_WORLD, then it defines a DMDA on the Subcomm->comm and finally it packs it into a DMComposite. I get this error whenever I call DMCompositeGetISLocalToGlobalMapping on a DMComposite defined in such a way. I would be glad if you could give it a look. Thank you Domenico

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