Intel® MKL : ILP64 BLACS routines for Intel® MPI and MPICH2+

 Intel® Math Kernel Library (Intel® MKL) is a computing math library of highly
 optimized, extensively threaded routines for applications that require
 maximum performance.
 .
 This package contains ILP64 version of BLACS routines for Intel® MPI Library
 and MPICH2 or higher.
 It belongs to the Cluster Libraries of MKL.