| 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: | 128 | Processors determined: | 128 | |
| Cores per chip: | 1 | HPL Processes: | 128 | |
| MPI Processes: | 128 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | 2 | |
| Theoretical peak: | 0.8192 TFlop/s | Total memory: | 3328 GiB | |
| FFT library: | ||||
| HPL | ||||
| HPL: | 0.442044 Tflop/s | HPL time: | 18754.8 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.0000000107634 | |
| HPL Anorm1: | 58215 | HPL AnormI: | 58389.7 | |
| HPL Xnorm1: | 186220 | HPL XnormI: | 4.8313 | |
| HPL N: | 231680 | HPL NB: | 80 | |
| 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: | 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: | 13.2323 GB/s | PTRANS time: | 8.11281 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 115840 | |
| PTRANS NB: | 80 | PTRANS NProw: | 8 | |
| PTRANS NPcol: | 16 | |||
| STREAM | ||||
| S-STREAM Copy: | 2.50712 GB/s | S-STREAM Scale: | 2.41831 GB/s | |
| S-STREAM Add: | 2.95193 GB/s | S-STREAM Triad: | 2.95687 GB/s | |
| EP-STREAM Copy: | 2.49778 GB/s | EP-STREAM Scale: | 2.41084 GB/s | |
| EP-STREAM Add: | 2.9411 GB/s | EP-STREAM Triad: | 2.94552 GB/s | |
| STREAM Vector Size: | 139780266 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.0101874 Gup/s | EP-RandomAccess: | 0.0102282 Gup/s | |
| G-RandomAccess: | 0.102388 Gup/s | G-RandomAccess N: | 34359738368 | |
| G-RandomAccess time: | 59.3326 seconds | G-RandomAccess Check Time: | 10.4769 seconds | |
| G-RandomAccess Errors: | 0 | G-RandomAccess Errors Fraction: | 0 | |
| G-RandomAccess TimeBound: | 4688.71 | G-RandomAccess ExeUpdates: | 6074931584 | |
| RandomAccess N: | 268435456 | |||
| FFT | ||||
| S-FFT: | 0.597131 GFlop/s | EP-FFT: | 0.595675 GFlop/s | |
| MPIFFT: | 17.3903 GFlop/s | MPIFFT N: | 4294967296 | |
| MPIFFT Max Error: | 0.00000000000000220373 | MPIFFT time0: | 0.00000190735 seconds | |
| MPIFFT time1: | 8.54251 seconds | MPIFFT time2: | 2.63938 seconds | |
| MPIFFT time3: | 7.81378 seconds | MPIFFT time4: | 11.4088 seconds | |
| MPIFFT time5: | 8.66154 seconds | MPIFFT time6: | 0.00000309944 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 8 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 4.88496 GFlop/s | EP-DGEMM: | 4.87845 GFlop/s | |
| DGEMM N: | 10238 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 8.33001 usec | RandomRing Bandwidth: | 0.171202 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 9.29832 usec | NaturalRing Bandwidth: | 0.155343 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 8.25524 usec | Maximum PingPong Bandwidth: | 0.67902 GB/s | |
| Minimum PingPong Latency: | 5.06639 usec | Minimum PingPong Bandwidth: | 0.634012 GB/s | |
| Average PingPong Latency: | 7.19751 usec | Average PingPong Bandwidth: | 0.661076 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: | |||