| System Information | ||||
| Affiliation: | Tohoku University, Information Synergy Center | URL: | http://www.isc.tohoku.ac.jp/index-e.html | |
| Location: | Japan, Sendai | System Use: | Academic | |
| System Manufacturer: | NEC | System Name: | NEC SX-7C | |
| Interconnect Manufacturer: | NEC | Interconnect Type: | IXS | |
| Operating System: | SUPER-UX 16.1 | MPI: | MPI/SX 7.1.3 | |
| MPI Wtick: | 0.000000001 | BLAS: | Mathkeisan 1.6.0 | |
| Language: | C | Compiler: | C++/SX Rev.071 | |
| Compiler Flags: | -Caopt -Orestrict=arg -pi,auto(STREAM) -Caopt -pvctl,vwork=stack -Orestrict=arg -DGM (PTRANS and b_eff) -Caopt -pvctl,nodep,vwork=stack -Orestrict=arg -pi,auto (FFT,HPL)-Caopt -pvctl,nodep,vwork=stack -Orestrict=arg -pi,auto -DMPI2 -DRA_METHOD='"SS"'(RA) | Processor Type: | NEC SX-8 | |
| Processor Speed: | 2 GHz | Total Processors: | 40 | |
| Processors Entered: | 40 | Processors determined: | 40 | |
| Cores per chip: | 1 | HPL Processes: | 40 | |
| MPI Processes: | 40 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | 8 | |
| Theoretical peak: | 0.64 TFlop/s | Total memory: | GiB | |
| FFT library: | ||||
| Explain Optimizations: | ||||
| Use Gmem (PTRANS,b_eff) Use FFTE 4.0 vector algorithm (G-FFT) Use unreleased ASL library (SN/EP FFT) Use hypercube algorithm (G-RA) Change loop length to 256 (SN/EP RA) | ||||
| HPL | ||||
| HPL: | 0.611262 Tflop/s | HPL time: | 2535.95 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.00000000333112 | |
| HPL Anorm1: | 33330.9 | HPL AnormI: | 33274.8 | |
| HPL Xnorm1: | 121854 | HPL XnormI: | 5.03506 | |
| HPL N: | 132480 | HPL NB: | 64 | |
| HPL NProw: | 1 | HPL NPcol: | 40 | |
| HPL depth: | 1 | HPL NBdiv: | 3 | |
| HPL NBmin: | 44 | HPL CPfact: | R | |
| HPL CRfact: | R | HPL CPtop: | 0 | |
| HPL order: | C | |||
| 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: | 0 | |
| dweps: | 1.110223e-16 | sweps: | 0.00000005960464 | |
| PTRANS | ||||
| PTRANS: | 70.0901 GB/s | PTRANS time: | 0.500811 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 66240 | |
| PTRANS NB: | 553 | PTRANS NProw: | 1 | |
| PTRANS NPcol: | 40 | |||
| STREAM | ||||
| S-STREAM Copy: | 63.1496 GB/s | S-STREAM Scale: | 63.0798 GB/s | |
| S-STREAM Add: | 63.1989 GB/s | S-STREAM Triad: | 63.2064 GB/s | |
| EP-STREAM Copy: | 39.6168 GB/s | EP-STREAM Scale: | 36.4639 GB/s | |
| EP-STREAM Add: | 37.3131 GB/s | EP-STREAM Triad: | 35.9986 GB/s | |
| STREAM Vector Size: | 146257920 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.588022 Gup/s | EP-RandomAccess: | 0.49797 Gup/s | |
| G-RandomAccess: | 0.00852005 Gup/s | G-RandomAccess N: | 17179869184 | |
| G-RandomAccess time: | 8065.62 seconds | G-RandomAccess Check Time: | 3185.25 seconds | |
| G-RandomAccess Errors: | 73206 | G-RandomAccess Errors Fraction: | 0.00000426115 | |
| G-RandomAccess TimeBound: | 0 | G-RandomAccess ExeUpdates: | 68719476736 | |
| RandomAccess N: | 268435456 | |||
| FFT | ||||
| S-FFT: | 11.3375 GFlop/s | EP-FFT: | 7.90723 GFlop/s | |
| MPIFFT: | 92.8274 GFlop/s | MPIFFT N: | 1073741824 | |
| MPIFFT Max Error: | 0.00000000000000239149 | MPIFFT time0: | 0.00000460795 seconds | |
| MPIFFT time1: | 0.45098 seconds | MPIFFT time2: | 0.291904 seconds | |
| MPIFFT time3: | 0.301269 seconds | MPIFFT time4: | 0.243991 seconds | |
| MPIFFT time5: | 0.421323 seconds | MPIFFT time6: | 0.000000192085 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 8 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 15.9022 GFlop/s | EP-DGEMM: | 15.9457 GFlop/s | |
| DGEMM N: | 10473 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 10.3271 usec | RandomRing Bandwidth: | 1.33038 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 7.15801 usec | NaturalRing Bandwidth: | 12.2699 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 5.06302 usec | Maximum PingPong Bandwidth: | 29.7557 GB/s | |
| Minimum PingPong Latency: | 2.23977 usec | Minimum PingPong Bandwidth: | 12.9851 GB/s | |
| Average PingPong Latency: | 4.4981 usec | Average PingPong Bandwidth: | 16.0411 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: | |||