| System Information | ||||
| Affiliation: | DOE/NNSA/Sandia National Laboratories | URL: | http://www.sandia.gov | |
| Location: | USA, New Mexico, Albuquerque | System Use: | Government | |
| System Manufacturer: | Cray Inc. | System Name: | Red Storm/XT3 | |
| Interconnect Manufacturer: | Cray | Interconnect Type: | Seastar | |
| Operating System: | Catamount/XT 1.5.39 | MPI: | xt-mpt/1.5.39 based on MPICH 2.0 | |
| MPI Wtick: | 0.000001 | BLAS: | ACML 3.6.1 | |
| Language: | C | Compiler: | PGI 6.1.4 and gcc 3.3.3 | |
| Compiler Flags: | -O3 -fastsse -DLONG_IS_64BITS; -O3 -DLONG_IS_64BITS -fomit-frame-pointer -fstrict-aliasing -mpreferred-stack-boundary=4 (gcc - Random); -Mnontemporal -Mprefetch=distance:8,nta -Msafeptr -O3 -fastsse -DLONG_IS_64BITS (STREAMS) | Processor Type: | AMD Opteron | |
| Processor Speed: | 2.4 GHz | Total Processors: | 12960 | |
| Processors Entered: | 12800 | Processors determined: | 25600 | |
| Cores per chip: | 2 | HPL Processes: | 25600 | |
| MPI Processes: | 25600 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | 2 | |
| Theoretical peak: | 124.4 TFlop/s | Total memory: | 40130 GiB | |
| FFT library: | ||||
| Explain Optimizations: | ||||
| Random Access documented at http://www.cs.sandia.gov/~sjplimp/algorithms.html#gups and PTRANS used an optimal node placement through the use of enviroment variables without code change. | ||||
| HPL | ||||
| HPL: | 93.5793 Tflop/s | HPL time: | 7124.1 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.00000021594 | |
| HPL Anorm1: | 250584 | HPL AnormI: | 250563 | |
| HPL Xnorm1: | 2263160 | HPL XnormI: | 14.4748 | |
| HPL N: | 1000000 | HPL NB: | 64 | |
| HPL NProw: | 160 | HPL NPcol: | 160 | |
| HPL depth: | 0 | HPL NBdiv: | 2 | |
| HPL NBmin: | 8 | HPL CPfact: | C | |
| HPL CRfact: | C | HPL CPtop: | 5 | |
| 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: | 4993.64 GB/s | PTRANS time: | 0.40051 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 500000 | |
| PTRANS NB: | 34 | PTRANS NProw: | 160 | |
| PTRANS NPcol: | 160 | |||
| STREAM | ||||
| S-STREAM Copy: | 4.77642 GB/s | S-STREAM Scale: | 4.81395 GB/s | |
| S-STREAM Add: | 4.82647 GB/s | S-STREAM Triad: | 4.84615 GB/s | |
| EP-STREAM Copy: | 2.86434 GB/s | EP-STREAM Scale: | 2.87149 GB/s | |
| EP-STREAM Add: | 2.89225 GB/s | EP-STREAM Triad: | 3.01296 GB/s | |
| STREAM Vector Size: | 13020833 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.0159849 Gup/s | EP-RandomAccess: | 0.00904712 Gup/s | |
| G-RandomAccess: | 33.563 Gup/s | G-RandomAccess N: | 549755813888 | |
| G-RandomAccess time: | 65.5192 seconds | G-RandomAccess Check Time: | 301.97 seconds | |
| G-RandomAccess Errors: | 24116253 | G-RandomAccess Errors Fraction: | 0.0000438672 | |
| G-RandomAccess TimeBound: | 0 | G-RandomAccess ExeUpdates: | 2199023255552 | |
| RandomAccess N: | 33554432 | |||
| FFT | ||||
| S-FFT: | 0.722327 GFlop/s | EP-FFT: | 0.618219 GFlop/s | |
| MPIFFT: | 1515.42 GFlop/s | MPIFFT N: | 68719476736 | |
| MPIFFT Max Error: | 0.00000000000000211398 | MPIFFT time0: | 0.000000953674 seconds | |
| MPIFFT time1: | 1.72398 seconds | MPIFFT time2: | 0.862794 seconds | |
| MPIFFT time3: | 1.60717 seconds | MPIFFT time4: | 1.55204 seconds | |
| MPIFFT time5: | 2.31261 seconds | MPIFFT time6: | 0.00000190735 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 8 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 4.40924 GFlop/s | EP-DGEMM: | 4.4043 GFlop/s | |
| DGEMM N: | 3125 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 19.2529 usec | RandomRing Bandwidth: | 0.0424062 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 19.1927 usec | NaturalRing Bandwidth: | 0.0571159 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 10.252 usec | Maximum PingPong Bandwidth: | 2.09768 GB/s | |
| Minimum PingPong Latency: | 5.24521 usec | Minimum PingPong Bandwidth: | 1.97728 GB/s | |
| Average PingPong Latency: | 7.44585 usec | Average PingPong Bandwidth: | 2.02478 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: | |||