Model Number | Origin | |

Number of Processors | 128 | |

Processor Type | R12000 @ 400 MHz | |

Operating System | IRIX64, Rel. 6.5 |

Date Started | 05/16/2000 | 07/09/2000 | 05/16/2000 | 07/07/2000 |

Code Used | Example 11 | Example 11 | Example 11 | Example 11 |

Number of Equations | 50,000 | 50,000 | 100,000 | 150,000 |

Number of Vectors | 1 | 1 | 1 | 1 |

Matrix Sparsity | Full | Full | Full | Full |

Matrix Symmetry | Symmetric | Nonsymmetric With Pivoting |
Symmetric | Nonsymmetric With Pivoting |

Data Type | 16-byte Complex | 16-byte Complex | 16-byte Complex | 16-byte Complex |

Memory for FMS(Gbytes) | 16 | 32 | 32 | 48 |

CPU Time (Day::Hr:Min:Sec) | 3::17:37:02 | 7::12:27:39 | 24::16:10:51 | 172::14:12:50 |

Wall Time (Day::Hr:Min:Sec) | 1:04:19 | 2:16:13 | 5:49:46 | 1::12:55:44 |

I/O Wait Time (Hr:Min:Sec) | 2:53 | 3:53 | 5:22 | 36:49 |

Megaflops per Processor | 516 | 513 | 625 | 603 |

Overall Megaflops | 43,190 | 40,787 | 63,536 | 67,698 |

Parellel Speedup | 83.60 out of 128 | 79.49 out of 128 | 101.59 out of 128 | 112.16 out of 128 |

**CPU Time**is the total amount of User and System time used by all processors.**Wall Time**is the elapsed time measured on a dedicated machine. This includes the time spent processing and any time spent waiting for I/O to complete.**I/O Wait Time**is the total time spent waiting for I/O to complete that is not overlapped by asynchronous I/O.**Megaflops per Processor**is the theoretical number of floating point operations performed, divided by the CPU time.**Overall Megaflops**is the total number of floating point operations performed, divided by the Wall Time.**Parallel Speedup**is the overall increase in performance due to parallel processing.