| System Information | ||||
| Affiliation: | NASA | URL: | NASA Ames Research Center | |
| Location: | USA, California, Moffett Field | System Use: | Research | |
| System Manufacturer: | SGI | System Name: | Columbia 2048 | |
| Interconnect Manufacturer: | SGI | Interconnect Type: | NUMALINK 4 | |
| Operating System: | SGI Pro Pack 4 based on SUSE Linux | MPI: | MPT 1.12.0.0 | |
| MPI Wtick: | 0.00000005 | BLAS: | GOTO | |
| Language: | C | Compiler: | icc 8.1.026 | |
| Compiler Flags: | -O3 | Processor Type: | Intel Itanium 2 | |
| Processor Speed: | 1.6 GHz | Total Processors: | 2048 | |
| Processors Entered: | 2024 | Processors determined: | 2024 | |
| Cores per chip: | 1 | HPL Processes: | 2024 | |
| MPI Processes: | 2024 | Threads Entered: | 1 | |
| Threads determined: | 1 | FLOPs per cycle: | 4 | |
| Theoretical peak: | 12.9536 TFlop/s | Total memory: | GiB | |
| FFT library: | ||||
| HPL | ||||
| HPL: | 9.31965 Tflop/s | HPL time: | 9950.91 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.0000000309936 | |
| HPL Anorm1: | 129999 | HPL AnormI: | 135679 | |
| HPL Xnorm1: | 1762910 | HPL XnormI: | 21.0252 | |
| HPL N: | 518144 | HPL NB: | 128 | |
| HPL NProw: | 46 | HPL NPcol: | 44 | |
| HPL depth: | 1 | HPL NBdiv: | 2 | |
| HPL NBmin: | 4 | HPL CPfact: | R | |
| HPL CRfact: | C | HPL CPtop: | 0 | |
| 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: | 18.1901 GB/s | PTRANS time: | 29.5186 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 259072 | |
| PTRANS NB: | 128 | PTRANS NProw: | 46 | |
| PTRANS NPcol: | 44 | |||
| STREAM | ||||
| S-STREAM Copy: | 2.92618 GB/s | S-STREAM Scale: | 2.97306 GB/s | |
| S-STREAM Add: | 3.56696 GB/s | S-STREAM Triad: | 3.56281 GB/s | |
| EP-STREAM Copy: | 1.66792 GB/s | EP-STREAM Scale: | 1.66496 GB/s | |
| EP-STREAM Add: | 1.96827 GB/s | EP-STREAM Triad: | 1.97554 GB/s | |
| STREAM Vector Size: | 44214954 | STREAM Threads: | 1 | |
| RandomAccess | ||||
| S-RandomAccess: | 0.00495115 Gup/s | EP-RandomAccess: | 0.00423159 Gup/s | |
| G-RandomAccess: | 0.0491621 Gup/s | G-RandomAccess N: | 137438953472 | |
| G-RandomAccess time: | 59.3606 seconds | G-RandomAccess Check Time: | 46.1582 seconds | |
| G-RandomAccess Errors: | 0 | G-RandomAccess Errors Fraction: | 0 | |
| G-RandomAccess TimeBound: | 2487.73 | G-RandomAccess ExeUpdates: | 2918292256 | |
| RandomAccess N: | 67108864 | |||
| FFT | ||||
| S-FFT: | 0.694878 GFlop/s | EP-FFT: | 0.577819 GFlop/s | |
| MPIFFT: | 45.776 GFlop/s | MPIFFT N: | 8589934592 | |
| MPIFFT Max Error: | 0.0000000000000021442 | MPIFFT time0: | 0.0000039 seconds | |
| MPIFFT time1: | 11.3217 seconds | MPIFFT time2: | 1.58136 seconds | |
| MPIFFT time3: | 8.72899 seconds | MPIFFT time4: | 3.10022 seconds | |
| MPIFFT time5: | 6.0735 seconds | MPIFFT time6: | 0.00000355 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 8 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 6.25739 GFlop/s | EP-DGEMM: | 6.23637 GFlop/s | |
| DGEMM N: | 5758 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 6.9812 usec | RandomRing Bandwidth: | 0.122712 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 6.15 usec | NaturalRing Bandwidth: | 0.257503 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 5.05937 usec | Maximum PingPong Bandwidth: | 1.38915 GB/s | |
| Minimum PingPong Latency: | 2.67187 usec | Minimum PingPong Bandwidth: | 0.750532 GB/s | |
| Average PingPong Latency: | 4.22981 usec | Average PingPong Bandwidth: | 0.895959 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: | |||