DSCPACK Installation

NOTE: These intructions were updated in September 2005. They may not be kept up-to-date. Refer to the SuperLU documentation for more recent and more complete instructions.

DSCPACK must be installed before Amesos_Dscpack can be used. Follow these steps to install DSCPACK on your system:

  • Obtain the DSCPACK distribution from Padma Raghavan’s DSCPACK web site. You will have to submit a form asking for a password.

  • Untar the DSCPACK code in your Trilinos3PL directory.

  • Build DSCPACK

    • Edit DSCPACK1.0/DSC_LIB/Makefile to use the correct compilers for your system.
    • Note:Trilinos3PL/config/DSCPACK1.0/DSC_LIB contains the Makefile files that I used.
    • cd DSCPACK1.0/DSC_LIB; make lib_dbl

  • Build and run an example:

    • Edit DSCPACK1.0/Makefile to use the correct compilers for your system and include MPI and BLAS libraries.

    • Note:Trilinos3PL/config/DSCPACK1.0 contains the Makefile files that I used.

    • make all

    • mpirun -np 2 ./Solve1 2 3 4 1 1 1 1 2 1

    • Expected output:

      ...starting with 2 processors in solver group

...Grid  2X 3X 4, Order 1, Factor 1, Solve  1, RHS 1, Processor 2, 
 NumLocalNonz = 35
Stats after Matrix number 1 [1]

_________________________________________________________________________________________________________
                    P       Type       rank     |A|(K)  #solves         sol-err       count-err          sample
                    2     TS-LLT         24       0.07        1    0.0000000000    0.0000000000    1.0000000000
            O-time(s)  S-time(s)  N-time(s)   N-ops(M)  N-rate(M)     |L|(K) SO-time(s)  SO-ops(M) SO-rate(M) 
       min       0.00       0.00       0.00       0.00       0.52       0.07       0.00       0.00       ----
       max       0.00       0.00       0.00       0.00       0.55       0.07       0.00       0.00       ----
   overall       ----       ----       ----       0.00       0.96       0.15       ----       0.00       1.14
      Memory(Mbytes)        min        max    overall
            Estimate       0.00  NumLocalNonz = 35
      0.00       0.01
            Observed       0.00       0.00       0.01
      Observed L-mem       0.00       0.00       0.00
      Observed stack       0.00       0.00       0.00
        Solve-memory       0.00       0.00       0.00

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  • Update your configure invocation script by, for example, adding the following:

    • --enable-amesos-dscpack
    • --with-libs=”-L/home/username/Trilinos3PL/DSCPACK1.0/DSC_LIB” or --with-libs=”/home/username/Trilinos3PL/DSCPACK1.0/DSC_LIB/dsclibdbl.a”
    • --with-incdirs=”-I/home/username/Trilinos3PL/DSCPACK1.0/DSC_LIB”