| System Information | ||||
| Affiliation: | ERDC MSRC | URL: | http://www.erdc.hpc.mil | |
| Location: | USA, Mississippi, Vicksburg | System Use: | Government | |
| System Manufacturer: | Cray Inc. | System Name: | XT4 | |
| Interconnect Manufacturer: | Cray | Interconnect Type: | Cray Seastar | |
| Operating System: | Unicos/lc 2.0.49 | MPI: | MPICH 2 v 1.0.2 | |
| MPI Wtick: | 0.000001 | BLAS: | Cray Libsci 10.2.0 | |
| Language: | C | Compiler: | PGI 7.1.6 | |
| Compiler Flags: | -O3 -tp=barcelona-64 -fastsse | Processor Type: | AMD Opteron | |
| Processor Speed: | 2.1 GHz | Total Processors: | 8608 | |
| Processors Entered: | 8464 | Processors determined: | 8464 | |
| Cores per chip: | 4 | HPL Processes: | 8464 | |
| MPI Processes: | 8464 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | 2 | |
| Theoretical peak: | 72.31 TFlop/s | Total memory: | 17216 GiB | |
| FFT library: | Cray Libsci 10.2.0 | |||
| HPL | ||||
| HPL: | 56.2478 Tflop/s | HPL time: | 25761.8 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.000000868775 | |
| HPL Anorm1: | 324465 | HPL AnormI: | 329532 | |
| HPL Xnorm1: | 5952470 | HPL XnormI: | 30.4159 | |
| HPL N: | 1295360 | HPL NB: | 128 | |
| HPL NProw: | 92 | HPL NPcol: | 92 | |
| HPL depth: | 2 | HPL NBdiv: | 2 | |
| HPL NBmin: | 4 | HPL CPfact: | R | |
| HPL CRfact: | R | HPL CPtop: | 3 | |
| 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: | 308.814 GB/s | PTRANS time: | 10.8671 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 647680 | |
| PTRANS NB: | 31 | PTRANS NProw: | 92 | |
| PTRANS NPcol: | 92 | |||
| STREAM | ||||
| S-STREAM Copy: | 6.62137 GB/s | S-STREAM Scale: | 6.63854 GB/s | |
| S-STREAM Add: | 6.63616 GB/s | S-STREAM Triad: | 6.60563 GB/s | |
| EP-STREAM Copy: | 2.3875 GB/s | EP-STREAM Scale: | 2.40175 GB/s | |
| EP-STREAM Add: | 2.16695 GB/s | EP-STREAM Triad: | 2.34883 GB/s | |
| STREAM Vector Size: | 66082133 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.0102969 Gup/s | EP-RandomAccess: | 0.00666265 Gup/s | |
| G-RandomAccess: | 3.39211 Gup/s | G-RandomAccess N: | 1099511627776 | |
| G-RandomAccess time: | 1296.55 seconds | G-RandomAccess Check Time: | 541.742 seconds | |
| G-RandomAccess Errors: | 4980691 | G-RandomAccess Errors Fraction: | 0.00000452991 | |
| G-RandomAccess TimeBound: | -1 | G-RandomAccess ExeUpdates: | 4398046511104 | |
| RandomAccess N: | 134217728 | |||
| FFT | ||||
| S-FFT: | 0.499743 GFlop/s | EP-FFT: | 0.33538 GFlop/s | |
| MPIFFT: | 788.248 GFlop/s | MPIFFT N: | 137438953472 | |
| MPIFFT Max Error: | 0.00000000000000218689 | MPIFFT time0: | 0.00000190735 seconds | |
| MPIFFT time1: | 6.19866 seconds | MPIFFT time2: | 6.60456 seconds | |
| MPIFFT time3: | 5.32183 seconds | MPIFFT time4: | 7.485 seconds | |
| MPIFFT time5: | 6.22067 seconds | MPIFFT time6: | 0.00000715256 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 4 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 7.66171 GFlop/s | EP-DGEMM: | 7.53677 GFlop/s | |
| DGEMM N: | 8128 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 31.3485 usec | RandomRing Bandwidth: | 0.079756 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 10.5143 usec | NaturalRing Bandwidth: | 0.386621 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 8.55327 usec | Maximum PingPong Bandwidth: | 1.68853 GB/s | |
| Minimum PingPong Latency: | 6.61612 usec | Minimum PingPong Bandwidth: | 1.54629 GB/s | |
| Average PingPong Latency: | 7.71514 usec | Average PingPong Bandwidth: | 1.61222 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: | 1 | CPS_RA_SANDIA_OPT2: | 0 | |