[petsc-dev] MKL discussion

[Barry Smith]

On Feb 1, 2013, at 4:30 PM, Satish Balay <balay at mcs.anl.gov> wrote:

> Actually its refered by [with a typo] :)
> 
>>              • --with-blas-lapack-dir=opt/intel/mkl72
> 
> Will add in a section for MKL.

  Put in the same place as the BLAS/LAPACK discussion 

> 
> Satish
> 
> On Fri, 1 Feb 2013, Barry Smith wrote:
> 
>> 
>>  Satish,
>> 
>>    The "BLAS/LAPACK" part of installation.html should discuss using the MKL libraries and how to use Intel's tool for determining the libraries to use. Currently this is not discussed there at all so users won't have a clue.
>> 
>>   Thanks
>> 
>>     Barry
>> 
>> From installation.html
>> 
>> BLAS/LAPACK
>> 
>> These packages provide some basic numeric kernels used by PETSc.
>> 
>> 	• Configure will automatically look for blas/lapack in certain standard locations, on most systems you should not need to provide any information about BLAS/LAPACK in the ./configure command.
>> 	• One can use the following options to let configure download/install blas/lapack automatically.
>> 		• --download-f-blas-lapack [when fortran compiler is present]
>> 		• --download-f2cblaslapack [when configuring without a fortran compiler - i.e --with-fc=0]
>> 	• Alternatively one can use other options like one of the following.
>> 		• --with-blas-lapack-lib=libsunperf.a
>> 		• --with-blas-lib=libblas.a --with-lapack-lib=liblapack.a
>> 		• --with-blas-lapack-dir=opt/intel/mkl72
>> Notes: