| System Information | ||||
| Affiliation: | University of Cambridge | URL: | http://www.hpc.cam.ac.uk | |
| Location: | United Kingdom, Cambridge | System Use: | Academic | |
| System Manufacturer: | ClusterVision/Dell/QLogic | System Name: | Darwin | |
| Interconnect Manufacturer: | QLogic | Interconnect Type: | InfiniBand DDR, QLogic TrueScale adapters | |
| Operating System: | Scientific Linux CERN SLC release 4.6 (Beryllium) | MPI: | HPMPI-2.02.07.00 | |
| MPI Wtick: | 0.001 | BLAS: | GotoBLAS 1.25 | |
| Language: | C | Compiler: | Intel C/C++ Compiler 10.0.026 | |
| Compiler Flags: | -O3 -ansi-alias -no-prec-div -no-prec-sqrt -fomit-frame-pointer -xT -restrict -DRA_SANDIA_OPT2 -DHPCC_MEMALLCTR; STREAMCCFLAGS=-fno-alias -opt-streaming-stores always | Processor Type: | Intel Xeon 5160 | |
| Processor Speed: | 3 GHz | Total Processors: | 256 | |
| Processors Entered: | 128 | Processors determined: | 128 | |
| Cores per chip: | 2 | HPL Processes: | 128 | |
| MPI Processes: | 128 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | ||
| Theoretical peak: | 1.536 TFlop/s | Total memory: | 512 GiB | |
| FFT library: | ||||
| HPL | ||||
| HPL: | 1.26897 Tflop/s | HPL time: | 2581.12 | |
| HPL eps: | 2.22045e-16 | HPL Rnorm1: | 0.000000000825679 | |
| HPL Anorm1: | 42743.6 | HPL AnormI: | 42740.7 | |
| HPL Xnorm1: | 78394.3 | HPL XnormI: | 2.61225 | |
| HPL N: | 170000 | HPL NB: | 172 | |
| HPL NProw: | 8 | HPL NPcol: | 16 | |
| HPL depth: | 1 | HPL NBdiv: | 2 | |
| HPL NBmin: | 4 | HPL CPfact: | R | |
| HPL CRfact: | C | HPL CPtop: | 1 | |
| HPL order: | R | |||
| HPL dMach EPS: | 2.220446e-16 | HPL sMach EPS: | 0.0000001192093 | |
| HPL dMach sfMin: | 0 | HPL sMach sfMin: | 1.175494e-38 | |
| HPL dMach Base: | 2 | HPL sMach Base: | 2 | |
| HPL dMach Prec: | 4.440892e-16 | HPL sMach Prec: | 0.0000002384186 | |
| HPL dMach mLen: | 53 | HPL sMach mLen: | 24 | |
| HPL dMach Rnd: | 0 | HPL sMach Rnd: | 0 | |
| HPL dMach eMin: | -1021 | HPL sMach eMin: | -125 | |
| HPL dMach rMin: | 0 | HPL sMach rMin: | 1.175494e-38 | |
| HPL dMach eMax: | 1025 | HPL sMach eMax: | 129 | |
| HPL dMach rMax: | 0 | HPL sMach rMax: | 0 | |
| dweps: | 1.110223e-16 | sweps: | 0.00000005960464 | |
| PTRANS | ||||
| PTRANS: | 15.8777 GB/s | PTRANS time: | 3.64033 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 85000 | |
| PTRANS NB: | 184 | PTRANS NProw: | 8 | |
| PTRANS NPcol: | 16 | |||
| STREAM | ||||
| S-STREAM Copy: | 3.09021 GB/s | S-STREAM Scale: | 3.08878 GB/s | |
| S-STREAM Add: | 3.37958 GB/s | S-STREAM Triad: | 3.37402 GB/s | |
| EP-STREAM Copy: | 1.22958 GB/s | EP-STREAM Scale: | 1.22935 GB/s | |
| EP-STREAM Add: | 1.36549 GB/s | EP-STREAM Triad: | 1.38146 GB/s | |
| STREAM Vector Size: | 75260416 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.0141761 Gup/s | EP-RandomAccess: | 0.00721041 Gup/s | |
| G-RandomAccess: | 0.419914 Gup/s | G-RandomAccess N: | 17179869184 | |
| G-RandomAccess time: | 163.651 seconds | G-RandomAccess Check Time: | 114.301 seconds | |
| G-RandomAccess Errors: | 41409 | G-RandomAccess Errors Fraction: | 0.00000241032 | |
| G-RandomAccess TimeBound: | -1 | G-RandomAccess ExeUpdates: | 68719476736 | |
| RandomAccess N: | 134217728 | |||
| FFT | ||||
| S-FFT: | 1.27367 GFlop/s | EP-FFT: | 0.686252 GFlop/s | |
| MPIFFT: | 28.9749 GFlop/s | MPIFFT N: | 2147483648 | |
| MPIFFT Max Error: | 0.00000000000000309671 | MPIFFT time0: | 0.00000286102 seconds | |
| MPIFFT time1: | 1.73436 seconds | MPIFFT time2: | 1.08498 seconds | |
| MPIFFT time3: | 1.09705 seconds | MPIFFT time4: | 5.45704 seconds | |
| MPIFFT time5: | 1.68307 seconds | MPIFFT time6: | 0.00000309944 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 8 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 11.3085 GFlop/s | EP-DGEMM: | 10.9602 GFlop/s | |
| DGEMM N: | 8674 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 1.29701 usec | RandomRing Bandwidth: | 0.262807 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 1.15452 usec | NaturalRing Bandwidth: | 0.424358 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 1.76786 usec | Maximum PingPong Bandwidth: | 3.83284 GB/s | |
| Minimum PingPong Latency: | 1.45498 usec | Minimum PingPong Bandwidth: | 1.07354 GB/s | |
| Average PingPong Latency: | 1.69825 usec | Average PingPong Bandwidth: | 1.32289 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: | 0 | CPS_HPCC_FFTW_ESTIMATE: | 0 | |
| CPS_HPCC_MEMALLCTR: | 1 | CPS_HPL_USE_GETPROCESSTIMES: | 0 | |
| CPS_RA_SANDIA_NOPT: | 0 | CPS_RA_SANDIA_OPT2: | 1 | |