[petsc-users] slepc trap for large matrix

[Jose E. Roman]

This option belongs to PETSc's configure, not SLEPc's configure.
Jose

> El 7 jun 2017, a las 16:37, Kannan, Ramakrishnan <kannanr at ornl.gov> escribió:
> 
> Barry,
> 
> Thanks for the kind response. I am building slepc 3.7.3 and when I configure –with-64-bit-indices=1, I am getting the following error. 
> 
> ./configure --with-64-bit-indices=1 --prefix=/lustre/atlas/proj-shared/csc209/ramki/slepc
> ERROR: Invalid arguments --with-64-bit-indices=1
> Use -h for help
> 
> When I run ./configure –h, I am getting the following options. Let me know if I am missing something. 
> 
> SLEPc Configure Help
> --------------------------------------------------------------------------------
> SLEPc:
>  --with-clean=<bool>          : Delete prior build files including externalpackages
>  --with-cmake=<bool>          : Enable builds with CMake (disabled by default)
>  --prefix=<dir>               : Specify location to install SLEPc (e.g., /usr/local)
>  --DATAFILESPATH=<dir>        : Specify location of datafiles (for SLEPc developers)
> ARPACK:
>  --download-arpack[=<fname>]  : Download and install ARPACK in SLEPc directory
>  --with-arpack=<bool>         : Indicate if you wish to test for ARPACK
>  --with-arpack-dir=<dir>      : Indicate the directory for ARPACK libraries
>  --with-arpack-flags=<flags>  : Indicate comma-separated flags for linking ARPACK
> BLOPEX:
>  --download-blopex[=<fname>]  : Download and install BLOPEX in SLEPc directory
> BLZPACK:
>  --with-blzpack=<bool>        : Indicate if you wish to test for BLZPACK
>  --with-blzpack-dir=<dir>     : Indicate the directory for BLZPACK libraries
>  --with-blzpack-flags=<flags> : Indicate comma-separated flags for linking BLZPACK
> FEAST:
>  --with-feast=<bool>          : Indicate if you wish to test for FEAST
>  --with-feast-dir=<dir>       : Indicate the directory for FEAST libraries
>  --with-feast-flags=<flags>   : Indicate comma-separated flags for linking FEAST
> PRIMME:
>  --download-primme[=<fname>]  : Download and install PRIMME in SLEPc directory
>  --with-primme=<bool>         : Indicate if you wish to test for PRIMME
>  --with-primme-dir=<dir>      : Indicate the directory for PRIMME libraries
>  --with-primme-flags=<flags>  : Indicate comma-separated flags for linking PRIMME
> TRLAN:
>  --download-trlan[=<fname>]   : Download and install TRLAN in SLEPc directory
>  --with-trlan=<bool>          : Indicate if you wish to test for TRLAN
>  --with-trlan-dir=<dir>       : Indicate the directory for TRLAN libraries
>  --with-trlan-flags=<flags>   : Indicate comma-separated flags for linking TRLAN
> SOWING:
>  --download-sowing[=<fname>]  : Download and install SOWING in SLEPc directory
> 
> -- 
> Regards,
> Ramki
> 
> 
> On 6/6/17, 9:06 PM, "Barry Smith" <bsmith at mcs.anl.gov> wrote:
> 
> 
>      The resulting matrix has something like
> 
>>>> 119999808*119999808*1.e-6
>    14,399,953,920.036863
> 
>      nonzero entries. It is possible that some integer operations are overflowing since C int can only go up to about 4 billion before overflowing.
> 
>      You can building with a different PETSC_ARCH value using the additional ./configure option for PETSc of --with-64-bit-indices and see if the problem is resolved.
> 
>       Barry
> 
> 
>> On Jun 5, 2017, at 12:37 PM, Kannan, Ramakrishnan <kannanr at ornl.gov> wrote:
>> 
>> I am running EPS for NHEP on a matrix of size 119999808x119999808 and I am experiencing the attached trapped. This is a 1D row distributed sparse uniform random matrix with 1e-6 sparsity  over 36 processors. It works fine for smaller matrices of sizes with 1.2 million x 1.2 million. Let me know if you are looking for more information.
>> 
>> -- 
>> Regards,
>> Ramki
>> 
>> <slepc.e609742.zip>
> 
> 
> 
>