| System Information | ||||
| Affiliation: | IBM T.J. Watson Research Center | URL: | www.ibm.com | |
| Location: | USA, New York, Yorktown Heights | System Use: | Research | |
| System Manufacturer: | IBM | System Name: | Blue Gene/L | |
| Interconnect Manufacturer: | IBM | Interconnect Type: | Blue Gene Custom Interconnect | |
| Operating System: | BLRTS DRV 248 | MPI: | MPICH 1.1 | |
| MPI Wtick: | 0.000006 | BLAS: | ESSL 4.2.2 beta | |
| Language: | C | Compiler: | blrts_xlc 7.0 | |
| Compiler Flags: | -O3 -qarch=440d -qtune=440; FFT=-O3 -qarch=440 -qtune=440; STREAMS and link: -O5 -qarch=440d -qtune=440 | Processor Type: | IBM PowerPC 440 | |
| Processor Speed: | 0.7 GHz | Total Processors: | 40960 | |
| Processors Entered: | 32768 | Processors determined: | 32768 | |
| Cores per chip: | 2 | HPL Processes: | 32768 | |
| MPI Processes: | 32768 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | 4 | |
| Theoretical peak: | 91.7504 TFlop/s | Total memory: | GiB | |
| FFT library: | ||||
| HPL | ||||
| HPL: | 31.2581 Tflop/s | HPL time: | 8695.37 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.000000184135 | |
| HPL Anorm1: | 185885 | HPL AnormI: | 186128 | |
| HPL Xnorm1: | 1546820 | HPL XnormI: | 12.5817 | |
| HPL N: | 741504 | HPL NB: | 96 | |
| HPL NProw: | 128 | HPL NPcol: | 256 | |
| HPL depth: | 1 | HPL NBdiv: | 6 | |
| HPL NBmin: | 6 | HPL CPfact: | L | |
| HPL CRfact: | R | 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: | 87.7818 GB/s | PTRANS time: | 12.5272 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 370752 | |
| PTRANS NB: | 40 | PTRANS NProw: | 128 | |
| PTRANS NPcol: | 256 | |||
| STREAM | ||||
| S-STREAM Copy: | 1.65029 GB/s | S-STREAM Scale: | 1.30674 GB/s | |
| S-STREAM Add: | 1.59 GB/s | S-STREAM Triad: | 1.44752 GB/s | |
| EP-STREAM Copy: | 0.781127 GB/s | EP-STREAM Scale: | 0.758928 GB/s | |
| EP-STREAM Add: | 0.849371 GB/s | EP-STREAM Triad: | 0.912893 GB/s | |
| STREAM Vector Size: | 5593141 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.00657732 Gup/s | EP-RandomAccess: | 0.00399872 Gup/s | |
| G-RandomAccess: | 0.278009 Gup/s | G-RandomAccess N: | 549755813888 | |
| G-RandomAccess time: | 66.6093 seconds | G-RandomAccess Check Time: | 334.806 seconds | |
| G-RandomAccess Errors: | 0 | G-RandomAccess Errors Fraction: | 0 | |
| G-RandomAccess TimeBound: | 2173.84 | G-RandomAccess ExeUpdates: | 18517950464 | |
| RandomAccess N: | 16777216 | |||
| FFT | ||||
| S-FFT: | 0.205229 GFlop/s | EP-FFT: | 0.193748 GFlop/s | |
| MPIFFT: | 1112.81 GFlop/s | MPIFFT N: | 68719476736 | |
| MPIFFT Max Error: | 0.0000000000000019421 | MPIFFT time0: | 0.0000100136 seconds | |
| MPIFFT time1: | 2.64946 seconds | MPIFFT time2: | 1.23878 seconds | |
| MPIFFT time3: | 2.56025 seconds | MPIFFT time4: | 1.6674 seconds | |
| MPIFFT time5: | 2.89787 seconds | MPIFFT time6: | 0.000013113 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 4 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 2.23207 GFlop/s | EP-DGEMM: | 2.17447 GFlop/s | |
| DGEMM N: | 2048 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 9.50689 usec | RandomRing Bandwidth: | 0.0119746 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 4.35114 usec | NaturalRing Bandwidth: | 0.112289 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 6.8744 usec | Maximum PingPong Bandwidth: | 0.15892 GB/s | |
| Minimum PingPong Latency: | 3.0001 usec | Minimum PingPong Bandwidth: | 0.156122 GB/s | |
| Average PingPong Latency: | 4.94871 usec | Average PingPong Bandwidth: | 0.158682 GB/s | |
| Size of Data Types | ||||
| char: | 1 byte | short: | 2 bytes | |
| int: | 4 bytes | long: | 4 bytes | |
| void ptr: | 4 bytes | float: | 4 bytes | |
| double: | 8 bytes | size t: | 4 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: | |||