| System Information | ||||
| Affiliation: | NNSA - Lawrence Livermore National Laboratory | URL: | www.llnl.gov | |
| Location: | USA, California, Livermore, CA | System Use: | Government | |
| System Manufacturer: | IBM | System Name: | Dawn | |
| Interconnect Manufacturer: | IBM | Interconnect Type: | Custom Torus + Tree + Barrier | |
| Operating System: | Custom Lightweight kernel | MPI: | MPICH2 1.0.7 | |
| MPI Wtick: | 0.000000001176471 | BLAS: | ESSL 4.4 | |
| Language: | C | Compiler: | XLC 9.0 | |
| Compiler Flags: | -O3 -qarch=450d -qtune=440 | Processor Type: | PowerPC 450 | |
| Processor Speed: | 0.85 GHz | Total Processors: | 147456 | |
| Processors Entered: | 131072 | Processors determined: | 131072 | |
| Cores per chip: | 4 | HPL Processes: | 32768 | |
| MPI Processes: | 32768 | Threads Entered: | 4 | |
| Threads determined: | 4 | FLOPs per cycle: | ||
| Theoretical peak: | 445.6 TFlop/s | Total memory: | 147456 GiB | |
| FFT library: | ESSL 4.4 | |||
| Explain Optimizations: | ||||
No optimizations other than those included in the ESSL math libraries were used. | ||||
| HPL | ||||
| HPL: | 197.239 Tflop/s | HPL time: | 63200.6 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.000014842 | |
| HPL Anorm1: | 664499 | HPL AnormI: | 664441 | |
| HPL Xnorm1: | 47985400 | HPL XnormI: | 116.811 | |
| HPL N: | 2654207 | HPL NB: | 96 | |
| HPL NProw: | 64 | HPL NPcol: | 512 | |
| HPL depth: | 1 | HPL NBdiv: | 2 | |
| HPL NBmin: | 6 | HPL CPfact: | C | |
| HPL CRfact: | R | HPL CPtop: | 1 | |
| HPL order: | R | |||
| HPL dMach EPS: | 1.110223e-16 | HPL sMach EPS: | 0.00000005960464 | |
| HPL dMach sfMin: | 2.225074e-308 | HPL sMach sfMin: | 1.1754939999999999e-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: | 2.225074e-308 | HPL sMach rMin: | 1.1754939999999999e-38 | |
| HPL dMach eMax: | 1024 | HPL sMach eMax: | 128 | |
| HPL dMach rMax: | 1.797693e308 | HPL sMach rMax: | 3.4028230000000003e38 | |
| dweps: | 1.110223e-16 | sweps: | 0.00000005960464 | |
| PTRANS | ||||
| PTRANS: | 785.865 GB/s | PTRANS time: | 17.4914 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 1327103 | |
| PTRANS NB: | 96 | PTRANS NProw: | 64 | |
| PTRANS NPcol: | 512 | |||
| STREAM | ||||
| S-STREAM Copy: | 8.63666 GB/s | S-STREAM Scale: | 7.40647 GB/s | |
| S-STREAM Add: | 9.38622 GB/s | S-STREAM Triad: | 8.15848 GB/s | |
| EP-STREAM Copy: | 8.63742 GB/s | EP-STREAM Scale: | 7.39122 GB/s | |
| EP-STREAM Add: | 9.38504 GB/s | EP-STREAM Triad: | 8.16112 GB/s | |
| STREAM Vector Size: | 71663562 | STREAM Threads: | 4 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.0100062 Gup/s | EP-RandomAccess: | 0.0100689 Gup/s | |
| G-RandomAccess: | 5.44859 Gup/s | G-RandomAccess N: | 4398046511104 | |
| G-RandomAccess time: | 3228.76 seconds | G-RandomAccess Check Time: | 946.515 seconds | |
| G-RandomAccess Errors: | 0 | G-RandomAccess Errors Fraction: | 0 | |
| G-RandomAccess TimeBound: | -1 | G-RandomAccess ExeUpdates: | 17592186044416 | |
| RandomAccess N: | 134217728 | |||
| FFT | ||||
| S-FFT: | 1.0611 GFlop/s | EP-FFT: | 1.06161 GFlop/s | |
| MPIFFT: | 2752.62 GFlop/s | MPIFFT N: | 549755813888 | |
| MPIFFT Max Error: | 0.0000000000000023865 | MPIFFT time0: | 0.00000350588 seconds | |
| MPIFFT time1: | 9.07926 seconds | MPIFFT time2: | 3.50285 seconds | |
| MPIFFT time3: | 8.58949 seconds | MPIFFT time4: | 8.62081 seconds | |
| MPIFFT time5: | 8.85708 seconds | MPIFFT time6: | 0.0000013906 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 8 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 11.0781 GFlop/s | EP-DGEMM: | 11.0847 GFlop/s | |
| DGEMM N: | 8464 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 5.17628 usec | RandomRing Bandwidth: | 0.0224245 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 4.07647 usec | NaturalRing Bandwidth: | 0.374335 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 6.13559 usec | Maximum PingPong Bandwidth: | 0.385831 GB/s | |
| Minimum PingPong Latency: | 2.63544 usec | Minimum PingPong Bandwidth: | 0.376662 GB/s | |
| Average PingPong Latency: | 4.38075 usec | Average PingPong Bandwidth: | 0.382224 GB/s | |
| Size of Data Types | ||||
| char: | 1 byte | short: | 2 bytes | |
| int: | 4 bytes | long: | 4 bytes | |
| void ptr: | 4 bytes | float: | 4 bytes | |
| double: | 8 bytes | size t: | 4 bytes | |
| s64Int: | 8 bytes | u64Int: | 8 bytes | |
| OpenMP | ||||
| M OpenMP: | 200505 | OpenMP Num Threads: | 4 | |
| OpenMP Num Procs: | 4 | OpenMP Max Threads: | 4 | |
| 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: | 0 | CPS_RA_SANDIA_OPT2: | 0 | |