22 Aug 2006      ==============================
                 Parallel CSDP on SDP problems
                 ==============================
               H. Mittelmann (mittelmann@asu.edu)

A partly Open-MP parallelized version of CSDP was run on a 24-proc Sun E6500 HPC server.

This solver is implemented for access through NEOS on a 4-processor, 1.2GHz, 16GB Sun-Fire V480.

Given are the numbers of variables and constraints and the speedup for 2 to 16 processors. The problems are taken from this benchmark.

Two MPI-parallelizable SDP codes are DSDP and SDPA.

 
===========================================================
 problem       var      cons       2      4      8     16
===========================================================
 trto-4       1,200     1,874    1.57   2.53   3.64   4.52 
 taha1b       1,610     8,007    1.80   3.36   6.01  11.18
 mater-4      4,807    12,498    1.74   2.82   3.84   5.25
 mater-5     10,143    26,820    1.90   3.43   5.66   8.81
 mater-6     20,463    56,311    1.94   3.71   6.34  11.57
============================================================