Colt Matrix benchmark running on java.vm.vendor IBM Corporation java.vm.version 1.4.1 java.vm.name Classic VM os.name Linux os.version 2.4.20-28.9smp os.arch x86 java.version 1.4.1 java.vendor IBM Corporation java.vendor.url http://www.ibm.com/ Colt Version is Version 1.1.0.0 (unknown) Please report problems to whoschek@lbl.gov Executing command = [dgemm, dense, 4, 2, 0.999, false, true, 5, 10, 25, 50, 100, 250, 500, 1000] ... @x.x.x.x.x.x.x.x.* Performance of Blas matrix-matrix mult dgemm(false, true, 1, A, B, 0, C) type=dense | size | 5 10 25 50 100 250 500 1000 ------------------------------------------------------------------------------------- d 0.999 | 216.694 485.522 675.749 725.493 1.363E+003 1.775E+003 1.906E+003 1.915E+003 Run took a total of Time=27.973 secs. End of run. Executing command = [dgemm, dense, 2, 2, 0.999, false, true, 5, 10, 25, 50, 100, 250, 500, 1000] ... @x.x.x.x.x.x.x.x.* Performance of Blas matrix-matrix mult dgemm(false, true, 1, A, B, 0, C) type=dense | size | 5 10 25 50 100 250 500 1000 ------------------------------------------------------------------------------------ d 0.999 | 214.921 483.585 653.833 880.794 1.416E+003 1.597E+003 1.75E+003 1.849E+003 Run took a total of Time=27.708 secs. End of run. Executing command = [dgemm, dense, 1, 2, 0.999, false, true, 5, 10, 25, 50, 100, 250, 500, 1000] ... @x.x.x.x.x.x.x.x.* Performance of Blas matrix-matrix mult dgemm(false, true, 1, A, B, 0, C) type=dense | size | 5 10 25 50 100 250 500 1000 ------------------------------------------------------------------------- d 0.999 | 215.949 486.479 645.372 797.843 904.523 891.071 907.853 921.659 Run took a total of Time=28.222 secs. End of run. Command file name used: medium.conf To reproduce and compare results, here it's contents: // matrix-matrix mult with 1 and with 2 CPUs dgemm dense 4 2.0 0.999 false true 5 10 25 50 100 250 500 1000 dgemm dense 2 2.0 0.999 false true 5 10 25 50 100 250 500 1000 dgemm dense 1 2.0 0.999 false true 5 10 25 50 100 250 500 1000 Program execution took a total of 1.4007334 minutes. Good bye.