| System Information | ||||
| Affiliation: | National Nuclear Security Administration | URL: | Lawrence Livermore National Laboratory | |
| Location: | USA, California, Livermore | System Use: | Government | |
| System Manufacturer: | IBM | System Name: | Blue Gene/L | |
| Interconnect Manufacturer: | IBM | Interconnect Type: | Custom Torus / Tree | |
| Operating System: | Custom IBM compute node kernel (driver 248) | MPI: | MPICH2 1.0.1 | |
| MPI Wtick: | 0.000006 | BLAS: | ESSL 4.2.2 | |
| Language: | C | Compiler: | xlf 9.1, xlc 7.0 | |
| Compiler Flags: | -O3 -qarch 440d -qtune for all modules, -O5 -qarch=440d -qtune=440 for stream.c and FFT modules. Final linking done with: -05 qarch=440d -qtune=440 | Processor Type: | IBM PowerPC 440 | |
| Processor Speed: | 0.7 GHz | Total Processors: | 131072 | |
| Processors Entered: | 131072 | Processors determined: | 65536 | |
| Cores per chip: | 1 | HPL Processes: | 65536 | |
| MPI Processes: | 65536 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | 4 | |
| Theoretical peak: | 367 TFlop/s | Total memory: | GiB | |
| FFT library: | ||||
| Explain Optimizations: | ||||
| HPL: custom code using PPC 440 native intrinsics Streams: custom assembly coded kernels FFT: custom coded using PPC 440 native intrinsics MPIRandomAccess: custom code and algorithm This submission uses parameters to produce the high possible FFT performance. | ||||
| HPL | ||||
| HPL: | 252.297 Tflop/s | HPL time: | 10281.8 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.000000316544 | |
| HPL Anorm1: | 393919 | HPL AnormI: | 394119 | |
| HPL Xnorm1: | 1033100 | HPL XnormI: | 3.92964 | |
| HPL N: | 1572863 | HPL NB: | 96 | |
| HPL NProw: | 64 | HPL NPcol: | 1024 | |
| HPL depth: | 14 | HPL NBdiv: | 6 | |
| HPL NBmin: | 6 | HPL CPfact: | L | |
| HPL CRfact: | R | HPL CPtop: | 1 | |
| 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: | 369.63 GB/s | PTRANS time: | 13.3858 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 786431 | |
| PTRANS NB: | 96 | PTRANS NProw: | 64 | |
| PTRANS NPcol: | 1024 | |||
| STREAM | ||||
| S-STREAM Copy: | 1.64348 GB/s | S-STREAM Scale: | 1.30681 GB/s | |
| S-STREAM Add: | 2.06712 GB/s | S-STREAM Triad: | 2.46014 GB/s | |
| EP-STREAM Copy: | 1.64365 GB/s | EP-STREAM Scale: | 1.30691 GB/s | |
| EP-STREAM Add: | 2.04925 GB/s | EP-STREAM Triad: | 2.44239 GB/s | |
| STREAM Vector Size: | 12582896 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.00644238 Gup/s | EP-RandomAccess: | 0.00644238 Gup/s | |
| G-RandomAccess: | 35.4706 Gup/s | G-RandomAccess N: | 2199023255552 | |
| G-RandomAccess time: | 0.863659 seconds | G-RandomAccess Check Time: | 335.453 seconds | |
| G-RandomAccess Errors: | 0 | G-RandomAccess Errors Fraction: | 0 | |
| G-RandomAccess TimeBound: | 2570.45 | G-RandomAccess ExeUpdates: | 30634475520 | |
| RandomAccess N: | 33554432 | |||
| FFT | ||||
| S-FFT: | 0.236542 GFlop/s | EP-FFT: | 0.23665 GFlop/s | |
| MPIFFT: | 2311.09 GFlop/s | MPIFFT N: | 274877906944 | |
| MPIFFT Max Error: | 0.00000000000000196776 | MPIFFT time0: | 0.00000137143 seconds | |
| MPIFFT time1: | 5.99349 seconds | MPIFFT time2: | 1.97557 seconds | |
| MPIFFT time3: | 5.74941 seconds | MPIFFT time4: | 2.5804 seconds | |
| MPIFFT time5: | 6.20202 seconds | MPIFFT time6: | 0.00000150714 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 4 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 2.0741 GFlop/s | EP-DGEMM: | 2.0722 GFlop/s | |
| DGEMM N: | 3071 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 7.88958 usec | RandomRing Bandwidth: | 0.0110512 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 3.63943 usec | NaturalRing Bandwidth: | 0.180473 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 8.97774 usec | Maximum PingPong Bandwidth: | 0.158952 GB/s | |
| Minimum PingPong Latency: | 3.10042 usec | Minimum PingPong Bandwidth: | 0.152305 GB/s | |
| Average PingPong Latency: | 6.07564 usec | Average PingPong Bandwidth: | 0.157724 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: | -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: | |||