| System Information | ||||
| Affiliation: | MIT Lincoln Laboratory | URL: | http://www.ll.mit.edu/ | |
| Location: | USA, Massachusetts, Lexington | System Use: | Research | |
| System Manufacturer: | TopSpin/Cisco | System Name: | LLGrid TX2500 | |
| Interconnect Manufacturer: | TopSpin/Cisco | Interconnect Type: | InfiniBand | |
| Operating System: | Linux CentOS 4.4 kernel 2.6.9-42.0.2.ELsmp | MPI: | Open MPI 1.1.1 | |
| MPI Wtick: | 0.000001 | BLAS: | ATLAS 3 | |
| Language: | C | Compiler: | gcc 3.4.6 | |
| Compiler Flags: | -fomit-frame-pointer -O3 -funroll-loops -W -Wall | Processor Type: | Intel Xeon | |
| Processor Speed: | 3.2 GHz | Total Processors: | 832 | |
| Processors Entered: | 4 | Processors determined: | 4 | |
| Cores per chip: | 1 | HPL Processes: | 4 | |
| MPI Processes: | 4 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | 2 | |
| Theoretical peak: | 0.0256 TFlop/s | Total memory: | 3328 GiB | |
| FFT library: | ||||
| HPL | ||||
| HPL: | 0.0138332 Tflop/s | HPL time: | 3312.01 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.0000000221789 | |
| HPL Anorm1: | 10369.7 | HPL AnormI: | 12763.3 | |
| HPL Xnorm1: | 754767 | HPL XnormI: | 101.207 | |
| HPL N: | 40960 | HPL NB: | 80 | |
| HPL NProw: | 2 | HPL NPcol: | 2 | |
| HPL depth: | 1 | HPL NBdiv: | 2 | |
| HPL NBmin: | 4 | HPL CPfact: | R | |
| HPL CRfact: | C | HPL CPtop: | 1 | |
| 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: | 3.402823e38 | |
| dweps: | 1.110223e-16 | sweps: | 0.00000005960464 | |
| PTRANS | ||||
| PTRANS: | 0.282979 GB/s | PTRANS time: | 11.8576 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 20480 | |
| PTRANS NB: | 80 | PTRANS NProw: | 2 | |
| PTRANS NPcol: | 2 | |||
| STREAM | ||||
| S-STREAM Copy: | 2.51799 GB/s | S-STREAM Scale: | 2.42938 GB/s | |
| S-STREAM Add: | 2.97558 GB/s | S-STREAM Triad: | 2.97478 GB/s | |
| EP-STREAM Copy: | 2.50029 GB/s | EP-STREAM Scale: | 2.41534 GB/s | |
| EP-STREAM Add: | 2.94825 GB/s | EP-STREAM Triad: | 2.95077 GB/s | |
| STREAM Vector Size: | 139810133 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.0102372 Gup/s | EP-RandomAccess: | 0.0102442 Gup/s | |
| G-RandomAccess: | 0.0100554 Gup/s | G-RandomAccess N: | 1073741824 | |
| G-RandomAccess time: | 62.4007 seconds | G-RandomAccess Check Time: | 20.5532 seconds | |
| G-RandomAccess Errors: | 0 | G-RandomAccess Errors Fraction: | 0 | |
| G-RandomAccess TimeBound: | 828.002 | G-RandomAccess ExeUpdates: | 627461112 | |
| RandomAccess N: | 268435456 | |||
| FFT | ||||
| S-FFT: | 0.593026 GFlop/s | EP-FFT: | 0.598312 GFlop/s | |
| MPIFFT: | 0.57601 GFlop/s | MPIFFT N: | 134217728 | |
| MPIFFT Max Error: | 0.00000000000000248253 | MPIFFT time0: | 0.00000190735 seconds | |
| MPIFFT time1: | 7.21476 seconds | MPIFFT time2: | 2.05438 seconds | |
| MPIFFT time3: | 6.53081 seconds | MPIFFT time4: | 8.23315 seconds | |
| MPIFFT time5: | 6.9798 seconds | MPIFFT time6: | 0.00000405312 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 8 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 4.85716 GFlop/s | EP-DGEMM: | 4.87383 GFlop/s | |
| DGEMM N: | 10240 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 4.04416 usec | RandomRing Bandwidth: | 0.532474 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 4.31538 usec | NaturalRing Bandwidth: | 0.532661 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 5.69224 usec | Maximum PingPong Bandwidth: | 0.662137 GB/s | |
| Minimum PingPong Latency: | 5.49853 usec | Minimum PingPong Bandwidth: | 0.653268 GB/s | |
| Average PingPong Latency: | 5.59166 usec | Average PingPong Bandwidth: | 0.65799 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: | 4000 | MemSpec: | 3 | |
| MemVal: | 4000 | |||
| CPS | ||||
| CPS_HPCC_FFT_235: | CPS_HPCC_FFTW_ESTIMATE: | |||
| CPS_HPCC_MEMALLCTR: | CPS_HPL_USE_GETPROCESSTIMES: | |||
| CPS_RA_SANDIA_NOPT: | CPS_RA_SANDIA_OPT2: | |||