topic SCALAPACK libraries missing? in Intel® oneAPI Math Kernel Library

SCALAPACK libraries missing?

Richard_Kerr — Tue, 13 Sep 2016 23:03:00 GMT

Hello,

I installed the new version. However I noticed that the scalapack libraries are missing. Specifically

libmkl_scalapack_lp64.a, ibmkl_scalapack_lp64.so etc

I had trouble linking when I called subroutine slasrt2 in my code.

Am I missing something?

Cheers

RIchard

The MKL link line advisor

mecej4 — Wed, 14 Sep 2016 13:11:57 GMT

The MKL link line advisor shows the Scalapack and Blacs libraries in the group "Cluster library", and that probably implies that you will have the Scalapack libraries available only if you chose the cluster edition when you installed Parallel Studio.

Richard, please try to

Gennady_F_Intel — Wed, 14 Sep 2016 18:23:50 GMT

Richard, please try to reinstall your package and check mkl's clauster components which is not installed by the default. thanks.

Thanks,

Richard_Kerr — Thu, 15 Sep 2016 00:41:50 GMT

Thanks,

I am very grateful for your help. Yes, I did a custom install and installed the cluster components. Now I have a new problem

I have worked out that in order to reference subroutine slasrt2 in my code I need to include in my linking the flags:

-lmkl_scalapack_lp64 -lmkl_blacs_intelmpi_lp64

but I am getting the errors:

/opt/intel/compilers_and_libraries_2017.0.098/linux/mkl/lib/intel64/libmkl_blacs_intelmpi_lp64.so: undefined reference to `MPI_Waitall'
/opt/intel/compilers_and_libraries_2017.0.098/linux/mkl/lib/intel64/libmkl_blacs_intelmpi_lp64.so: undefined reference to `MPI_Abort'
/opt/intel/compilers_and_libraries_2017.0.098/linux/mkl/lib/intel64/libmkl_blacs_intelmpi_lp64.so: undefined reference to `MPI_Waitany'
/opt/intel/compilers_and_libraries_2017.0.098/linux/mkl/lib/intel64/libmkl_blacs_intelmpi_lp64.so: undefined reference to `MPI_Wtime'

etc

So I am now confused. I am not actually running my program on a cluster, but on a multi-thread (core) machine. Do I need to get the mpi stuff all set up and compile and link as if I am running a mpi job?

Richard

The MKL link line advisor

mecej4 — Thu, 15 Sep 2016 12:14:58 GMT

The MKL link line advisor specifies that you use the -qopenmp compile-time option in addition to using (at link time) the list of libraries that were mentioned. Here is what the MKLLLA gives:

Compiler options: -qopenmp -I${MKLROOT}/include
Linker options: -L${MKLROOT}/lib/intel64 -lmkl_scalapack_lp64 -lmkl_intel_lp64 -lmkl_core -lmkl_intel_thread -lmkl_blacs_intelmpi_lp64 -lpthread -lm -ldl

Thanks for the reply,

Richard_Kerr — Fri, 16 Sep 2016 00:18:00 GMT

Thanks for the reply,

but unfortunately I am getting the same error. I am wondering if I have to install openMPI and use the compiler wrapper mpif90 ?