| System Information | ||||
| Affiliation: | Oak Ridge National Laboratory | URL: | http://www.nccs.gov | |
| Location: | USA, Tennessee, Oak Ridge | System Use: | Research | |
| System Manufacturer: | Cray | System Name: | XT5 | |
| Interconnect Manufacturer: | Cray | Interconnect Type: | Seastar | |
| Operating System: | CLE | MPI: | MPT 3.4.2 | |
| MPI Wtick: | 0.000001 | BLAS: | ACML 4.2.0 | |
| Language: | C | Compiler: | PathScale 3.2 | |
| Compiler Flags: | -Ofast | Processor Type: | AMD Opteron | |
| Processor Speed: | 2.6 GHz | Total Processors: | 224256 | |
| Processors Entered: | 196608 | Processors determined: | 196608 | |
| Cores per chip: | 6 | HPL Processes: | 65536 | |
| MPI Processes: | 65536 | Threads Entered: | 3 | |
| Threads determined: | 1 | FLOPs per cycle: | 2 | |
| Theoretical peak: | 2044.7 TFlop/s | Total memory: | 299008 GiB | |
| FFT library: | FFTW 3.2alpha3 (Cray modified) | |||
| Explain Optimizations: | ||||
Modified HPL broadcast algorithms Used intercept routines for fftw_create_plan, fftw_one, fftw_mpi_create_plan, fftw_mpi_local_sizes, fftw_mpi_destroy_plan, fftw_mpi to interface with Cray-modified FFTW 3.2alpha3 Modified communication phase of Sandia's AnyNodesMPIRandomAccessUpdate to coordinate updates between ranks on-node, using MPI. No changes were made to lookahead, nor to the generation or application of updates. | ||||
| HPL | ||||
| HPL: | 1338.67 Tflop/s | HPL time: | 37341.8 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.000000923378 | |
| HPL Anorm1: | 1055700 | HPL AnormI: | 1055700 | |
| HPL Xnorm1: | 16312700 | HPL XnormI: | 25.8377 | |
| HPL N: | 4216832 | HPL NB: | 232 | |
| HPL NProw: | 256 | HPL NPcol: | 256 | |
| HPL depth: | 1 | HPL NBdiv: | 2 | |
| HPL NBmin: | 4 | HPL CPfact: | C | |
| HPL CRfact: | R | HPL CPtop: | 1 | |
| HPL order: | R | |||
| HPL dMach EPS: | 1.110223e-16 | HPL sMach EPS: | 0.00000005960464 | |
| HPL dMach sfMin: | 2.225074e-308 | HPL sMach sfMin: | 1.1754939999999999e-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: | 2.225074e-308 | HPL sMach rMin: | 1.1754939999999999e-38 | |
| HPL dMach eMax: | 1024 | HPL sMach eMax: | 128 | |
| HPL dMach rMax: | 1.797693e308 | HPL sMach rMax: | 3.4028230000000003e38 | |
| dweps: | 1.110223e-16 | sweps: | 0.00000005960464 | |
| PTRANS | ||||
| PTRANS: | 1889.16 GB/s | PTRANS time: | 17.9184 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 2108416 | |
| PTRANS NB: | 232 | PTRANS NProw: | 256 | |
| PTRANS NPcol: | 256 | |||
| STREAM | ||||
| S-STREAM Copy: | 5.76254 GB/s | S-STREAM Scale: | 5.75452 GB/s | |
| S-STREAM Add: | 6.35418 GB/s | S-STREAM Triad: | 6.35478 GB/s | |
| EP-STREAM Copy: | 3.30028 GB/s | EP-STREAM Scale: | 3.30789 GB/s | |
| EP-STREAM Add: | 3.69244 GB/s | EP-STREAM Triad: | 3.71282 GB/s | |
| STREAM Vector Size: | 90442261 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.0143238 Gup/s | EP-RandomAccess: | 0.011237 Gup/s | |
| G-RandomAccess: | 36.4275 Gup/s | G-RandomAccess N: | 17592186044416 | |
| G-RandomAccess time: | 1931.75 seconds | G-RandomAccess Check Time: | 1404.11 seconds | |
| G-RandomAccess Errors: | 420174 | G-RandomAccess Errors Fraction: | 0.0000000238841 | |
| G-RandomAccess TimeBound: | -1 | G-RandomAccess ExeUpdates: | 70368744177664 | |
| RandomAccess N: | 268435456 | |||
| FFT | ||||
| S-FFT: | 1.21098 GFlop/s | EP-FFT: | 1.24305 GFlop/s | |
| MPIFFT: | 10698.5 GFlop/s | MPIFFT N: | 2199023255552 | |
| MPIFFT Max Error: | 0.00000000000000238835 | MPIFFT time0: | 0 seconds | |
| MPIFFT time1: | 0 seconds | MPIFFT time2: | 0 seconds | |
| MPIFFT time3: | 0 seconds | MPIFFT time4: | 0 seconds | |
| MPIFFT time5: | 0 seconds | MPIFFT time6: | 0 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 4 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 28.8142 GFlop/s | EP-DGEMM: | 28.3858 GFlop/s | |
| DGEMM N: | 9509 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 15.9868 usec | RandomRing Bandwidth: | 0.0403873 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 16.0933 usec | NaturalRing Bandwidth: | 0.040266 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 9.0003 usec | Maximum PingPong Bandwidth: | 1.66805 GB/s | |
| Minimum PingPong Latency: | 0.586112 usec | Minimum PingPong Bandwidth: | 1.52562 GB/s | |
| Average PingPong Latency: | 7.44933 usec | Average PingPong Bandwidth: | 1.60932 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: | 0 | CPS_HPL_USE_GETPROCESSTIMES: | 0 | |
| CPS_RA_SANDIA_NOPT: | 0 | CPS_RA_SANDIA_OPT2: | 1 | |