| System Information | ||||
| Affiliation: | San Diego Supercomputer Center | URL: | www.sdsc.edu | |
| Location: | USA, California, San Diego | System Use: | Research | |
| System Manufacturer: | IBM | System Name: | p655 | |
| Interconnect Manufacturer: | IBM | Interconnect Type: | Federation | |
| Operating System: | AIX 5.2 | MPI: | PE 4.2 | |
| MPI Wtick: | 0.00000001333333 | BLAS: | ESSL 4.2 | |
| Language: | C | Compiler: | xlc 7.0 | |
| Compiler Flags: | -q64 -O4 -qnoipa | Processor Type: | IBM Power4+ | |
| Processor Speed: | 1.5 GHz | Total Processors: | 0 | |
| Processors Entered: | 2048 | Processors determined: | 2048 | |
| Cores per chip: | 2 | HPL Processes: | 2048 | |
| MPI Processes: | 2048 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | 4 | |
| Theoretical peak: | 12.288 TFlop/s | Total memory: | GiB | |
| FFT library: | ||||
| HPL | ||||
| HPL: | 6.20943 Tflop/s | HPL time: | 2356.86 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.000000012721 | |
| HPL Anorm1: | 70328.8 | HPL AnormI: | 70203 | |
| HPL Xnorm1: | 222337 | HPL XnormI: | 5.08886 | |
| HPL N: | 280000 | HPL NB: | 160 | |
| HPL NProw: | 32 | HPL NPcol: | 64 | |
| HPL depth: | 1 | HPL NBdiv: | 2 | |
| HPL NBmin: | 4 | HPL CPfact: | R | |
| HPL CRfact: | C | HPL CPtop: | 1 | |
| HPL order: | R | |||
| HPL dMach EPS: | 1.110223e-16 | HPL sMach EPS: | 0.00000005960464 | |
| HPL dMach sfMin: | 0 | HPL sMach sfMin: | 1.175494e-38 | |
| HPL dMach Base: | 2 | HPL sMach Base: | 2 | |
| HPL dMach Prec: | 2.220446e-16 | HPL sMach Prec: | 0.0000001192093 | |
| HPL dMach mLen: | 53 | HPL sMach mLen: | 24 | |
| HPL dMach Rnd: | 1 | HPL sMach Rnd: | 1 | |
| HPL dMach eMin: | -1021 | HPL sMach eMin: | -125 | |
| HPL dMach rMin: | 0 | HPL sMach rMin: | 1.175494e-38 | |
| HPL dMach eMax: | 1024 | HPL sMach eMax: | 128 | |
| HPL dMach rMax: | 1.797693e308 | HPL sMach rMax: | 3.402823e38 | |
| dweps: | 1.110223e-16 | sweps: | 0.00000005960464 | |
| PTRANS | ||||
| PTRANS: | 103.804 GB/s | PTRANS time: | 0.19267 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 50000 | |
| PTRANS NB: | 160 | PTRANS NProw: | 32 | |
| PTRANS NPcol: | 64 | |||
| STREAM | ||||
| S-STREAM Copy: | 2.99249 GB/s | S-STREAM Scale: | 2.69995 GB/s | |
| S-STREAM Add: | 3.60569 GB/s | S-STREAM Triad: | 3.45508 GB/s | |
| EP-STREAM Copy: | 1.38557 GB/s | EP-STREAM Scale: | 1.36746 GB/s | |
| EP-STREAM Add: | 1.67206 GB/s | EP-STREAM Triad: | 1.77326 GB/s | |
| STREAM Vector Size: | 6510416 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.0049217 Gup/s | EP-RandomAccess: | 0.00278257 Gup/s | |
| G-RandomAccess: | 0.141723 Gup/s | G-RandomAccess N: | 34359738368 | |
| G-RandomAccess time: | 60.3949 seconds | G-RandomAccess Check Time: | 11.2271 seconds | |
| G-RandomAccess Errors: | 0 | G-RandomAccess Errors Fraction: | 0 | |
| G-RandomAccess TimeBound: | 589.216 | G-RandomAccess ExeUpdates: | 8559382528 | |
| RandomAccess N: | 16777216 | |||
| FFT | ||||
| S-FFT: | 0.685609 GFlop/s | EP-FFT: | 0.365098 GFlop/s | |
| MPIFFT: | 156.544 GFlop/s | MPIFFT N: | 4294967296 | |
| MPIFFT Max Error: | 0.00000000000000213267 | MPIFFT time0: | 0.00000524521 seconds | |
| MPIFFT time1: | 0.656195 seconds | MPIFFT time2: | 1.02304 seconds | |
| MPIFFT time3: | 0.68378 seconds | MPIFFT time4: | 1.1627 seconds | |
| MPIFFT time5: | 0.817809 seconds | MPIFFT time6: | 0.00000238419 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 8 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 4.66199 GFlop/s | EP-DGEMM: | 3.99073 GFlop/s | |
| DGEMM N: | 2209 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 13.3635 usec | RandomRing Bandwidth: | 0.0695968 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 7.43866 usec | NaturalRing Bandwidth: | 0.579684 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 6.27339 usec | Maximum PingPong Bandwidth: | 2.80227 GB/s | |
| Minimum PingPong Latency: | 1.99676 usec | Minimum PingPong Bandwidth: | 1.40583 GB/s | |
| Average PingPong Latency: | 5.65458 usec | Average PingPong Bandwidth: | 1.53818 GB/s | |
| Size of Data Types | ||||
| char: | 1 byte | short: | 2 bytes | |
| int: | 4 bytes | long: | 8 bytes | |
| void ptr: | 8 bytes | float: | 4 bytes | |
| double: | 8 bytes | size t: | 8 bytes | |
| s64Int: | 8 bytes | u64Int: | 8 bytes | |
| OpenMP | ||||
| M OpenMP: | -1 | OpenMP Num Threads: | 0 | |
| OpenMP Num Procs: | 0 | OpenMP Max Threads: | 0 | |
| Memory | ||||
| MemProc: | -1 | MemSpec: | -1 | |
| MemVal: | -1 | |||
| CPS | ||||
| CPS_HPCC_FFT_235: | CPS_HPCC_FFTW_ESTIMATE: | |||
| CPS_HPCC_MEMALLCTR: | CPS_HPL_USE_GETPROCESSTIMES: | |||
| CPS_RA_SANDIA_NOPT: | CPS_RA_SANDIA_OPT2: | |||