Base Results
Optimized Results
Base and Optimized
Base Results
Optimized Results
Base and Optimized
Base Results
Optimized Results
Base and Optimized
Base Results
Optimized Results
Base and Optimized
Base Results
Optimized Results
Base and Optimized
Base Results
Optimized Results
Base and Optimized
Base Results
Optimized Results
Base and Optimized
Base Results
Optimized Results
Base and Optimized
Manufacturer/Processor Type, Speed, Count, Threads, Processes
Includes the manufacturer/processor type, processor speed, number of processors, threads, and number of processes.
Move mouse over this column for each row to display additional information, including; manufacturer, system name, interconnect, MPI, affiliation, and submission date.

Run Type

Run Type, indicates whether the benchmark was a base run or was optimized.

Randomly Ordered Ring Latency ( per process )
Randomly-Ordered Ring Latency, reports latency in the ring communication pattern. The communicating processes are ordered randomly in the ring. The result is averaged over various random assignments of processes in the ring.
Unit: micro-seconds
Naturally Ordered Ring Latency ( per process )
Naturally Ordered Ring Latency.
Unit: micro-seconds
Ping-Pong Latency
Ping-Pong Latency, reports the latency for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: micro-seconds
Maximum Ping-Pong Latency
Maximum Ping-Pong Latency, reports the maximum latency for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: micro-seconds
Minimum Ping-Pong Latency
Minimum Ping-Pong Latency, reports the minimum latency for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: micro-seconds
Average Ping-Pong Latency
Average Ping-Pong Latency, reports the average latency for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: micro-seconds
Ping-Pong Bandwidth
Ping-Pong Bandwidth, reports the bandwidth for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: Giga Bytes per second
Maximum Ping-Pong Bandwidth
Maximum Ping-Pong Bandwidth, reports the maximum bandwidth for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: Giga Bytes per second
Minimum Ping-Pong Bandwidth
Minimum Ping-Pong Bandwidth, reports the minimum bandwidth for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: Giga Bytes per second
Average Ping-Pong Bandwidth
Average Ping-Pong Bandwidth, reports the average bandwidth for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: Giga Bytes per second
Randomly Ordered Ring Bandwidth ( per process )
Randomly Ordered Ring Bandwidth, reports bandwidth achieved in the ring communication pattern. The communicating processes are ordered randomly in the ring. The result is averaged over various random assignments of processes in the ring.
Unit: Giga Bytes per second per process
Naturally Ordered Ring Bandwidth ( per process )
Naturally Ordered Ring Bandwidth, reports bandwidth achieved in the ring communication pattern. The ring is formed with consecutive processes in MPI_COMM_WORLD.
Unit: Giga Bytes per second per process
Description above

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Description below

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Latency and Bandwidth Results - Optimized Runs Only - 39 Systems - Generated on Mon Sep 1 03:28:31 2014
System Information
System - Processor - Speed - Count - Threads - Processes
LatencyBandwidth
Random
Ring
Natural
Ring
Ping-Pong LatencyPing-Pong BandwidthRandom
Ring
Natural
Ring
MaximumMininumAverageMaximumMinimumAverage
MA/PT/PS/PC/TH/PR/CM/CS/IC/IA/SDusecusecusecusecusecGB/sGB/sGB/sGB/sGB/s
Manufacturer: IBM
Processor Type: IBM Power7
Processor Speed: 3.836GHz
Processor Count: 1989
Threads: 32
Processses: 1989
System Name: Power 775
Interconnect: Custom IBM Hub Chip
MPI: IBM PE v1209
Affiliation: IBM Development Engineering
Submission Date: 11-08-12
IBM Power 775 Power7   3.836GHz   1989   32   1989
6.40
6.08
6.39
1.76
3.47
7.99
4.29
5.50
3.33
6.20
Manufacturer: Fujitsu
Processor Type: Fujitsu SPARC64 VIIIfx
Processor Speed: 2GHz
Processor Count: 663552
Threads: 8
Processses: 82944
System Name: K computer
Interconnect: Tofu Interconnect
MPI: Parallelnavi Technical Computing Language V1.0L20
Affiliation: RIKEN Advanced Institute for Computational Scinece
Submission Date: 10-23-12
Fujitsu K computer SPARC64 VIIIfx   2GHz   663552   8   82944
6.25
4.98
7.45
2.95
4.80
4.51
4.35
4.45
0.19
3.12
Manufacturer: IBM
Processor Type: IBM Power7 Quad-Chip module
Processor Speed: 3.836GHz
Processor Count: 1470
Threads: 32
Processses: 1470
System Name: IBM Power775
Interconnect: IBM Hub Chip integrated interconnect
MPI: IBM PE MPI release 1206
Affiliation: IBM Development Engineering - DARPA Trial Subset
Submission Date: 07-15-12
IBM Power775 Power7 Quad-Chip module   3.836GHz   1470   32   1470
5.23
4.85
5.58
1.64
2.73
15.40
4.26
5.56
3.38
6.72
Manufacturer: Fujitsu Ltd.
Processor Type: Fujitsu SPARC64 VIIIfx
Processor Speed: 2GHz
Processor Count: 147456
Threads: 8
Processses: 18432
System Name: K computer
Interconnect: Tofu interconnect
MPI: Parallelnavi Technical Computing Language V1.0L20
Affiliation: RIKEN Advanced Institute for Computational Science (AICS)
Submission Date: 11-08-11
Fujitsu Ltd. K computer Fujitsu SPARC64 VIIIfx   2GHz   147456   8   18432
6.69
5.17
6.30
3.25
4.61
4.57
4.43
4.53
0.23
3.11
Manufacturer: Fujitsu Ltd.
Processor Type: Fujitsu SPARC64 VIIIfx
Processor Speed: 2GHz
Processor Count: 147456
Threads: 8
Processses: 18432
System Name: K computer
Interconnect: Tofu interconnect
MPI: Parallelnavi Technical Computing Language V1.0L20
Affiliation: RIKEN Advanced Institute for Computational Science (AICS)
Submission Date: 10-31-11
Fujitsu Ltd. K computer Fujitsu SPARC64 VIIIfx   2GHz   147456   8   18432
7.19
4.92
6.41
3.00
4.45
4.58
4.46
4.52
0.23
3.10
Manufacturer: NEC
Processor Type: SX-9
Processor Speed: 3.2GHz
Processor Count: 1280
Threads: 1
Processses: 1280
System Name: SX-9
Interconnect: IXS
MPI: MPI/SX 8.0.12a
Affiliation: Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Submission Date: 11-11-10
NEC SX-9   3.2GHz   1280   1   1280
16.46
15.65
9.59
3.39
7.85
72.33
20.89
23.34
2.48
17.74
Manufacturer: NEC
Processor Type: SX-9
Processor Speed: 3.2GHz
Processor Count: 16
Threads: 1
Processses: 2
System Name: SX-9
Interconnect: IXS
MPI: MPI/SX 8.0.10
Affiliation: Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Submission Date: 11-16-09
NEC SX-9   3.2GHz   16   1   2
6.81
6.67
4.09
4.08
4.09
25.15
25.07
25.11
22.62
22.61
Manufacturer: NEC
Processor Type: SX-9
Processor Speed: 3.2GHz
Processor Count: 8
Threads: 1
Processses: 2
System Name: SX-9
Interconnect: IXS
MPI: MPI/SX 8.0.10
Affiliation: Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Submission Date: 11-16-09
NEC SX-9   3.2GHz   8   1   2
4.15
4.16
2.68
2.68
2.68
84.38
84.32
84.35
72.60
72.73
Manufacturer: IBM
Processor Type: Power PC 450
Processor Speed: 0.85GHz
Processor Count: 131072
Threads: 4
Processses: 32768
System Name: Dawn
Interconnect: Custom Torus + Tree + Barrier
MPI: MPICH2 1.0.7
Affiliation: NNSA - Lawrence Livermore National Laboratory
Submission Date: 11-11-09
IBM Dawn Power PC 450   0.85GHz   131072   4   32768
5.59
4.73
6.64
3.05
4.75
0.39
0.38
0.38
0.02
0.37
Manufacturer: NEC
Processor Type: SX-9
Processor Speed: 3.2GHz
Processor Count: 960
Threads: 1
Processses: 960
System Name: SX-9
Interconnect: IXS
MPI: MPI/SX 8.0.10
Affiliation: Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Submission Date: 11-11-09
NEC SX-9   3.2GHz   960   1   960
13.84
12.96
8.72
3.37
6.99
72.64
19.18
24.43
2.51
16.57
Manufacturer: Cray
Processor Type: AMD Opteron
Processor Speed: 2.6GHz
Processor Count: 223112
Threads: 2
Processses: 111556
System Name: XT5
Interconnect: Seastar
MPI: MPT 3.4.2
Affiliation: Oak Ridge National Laboratory
Submission Date: 11-10-09
Cray XT5 AMD Opteron   2.6GHz   223112   2   111556
31.09
11.30
10.55
6.87
8.88
1.65
1.52
1.59
0.03
0.35
Manufacturer: Cray
Processor Type: AMD Opteron
Processor Speed: 2.6GHz
Processor Count: 196608
Threads: 3
Processses: 65536
System Name: XT5
Interconnect: Seastar
MPI: MPT 3.4.2
Affiliation: Oak Ridge National Laboratory
Submission Date: 11-10-09
Cray XT5 AMD Opteron   2.6GHz   196608   3   65536
15.99
16.09
9.00
0.59
7.45
1.67
1.53
1.61
0.04
0.04
Manufacturer: Cray, Inc.
Processor Type: AMD Opteron
Processor Speed: 2.6GHz
Processor Count: 98304
Threads: 3
Processses: 32768
System Name: XT5
Interconnect: SeaStar 2+
MPI: MPT 3.4.2
Affiliation: National Institute for Computational Sciences
Submission Date: 11-02-09
Cray, Inc. XT5 AMD Opteron   2.6GHz   98304   3   32768
15.45
15.40
8.51
0.47
7.25
1.66
1.54
1.61
0.06
0.06
Manufacturer: IBM
Processor Type: PowerPC 450
Processor Speed: 0.85GHz
Processor Count: 32768
Threads: 4
Processses: 32768
System Name: Blue Gene/P
Interconnect: Torus
MPI: MPICH 2
Affiliation: Argonne National Lab - LCF
Submission Date: 11-17-08
IBM Blue Gene/P PowerPC 450   0.85GHz   32768   4   32768
6.24
4.86
6.62
3.58
5.07
0.39
0.38
0.39
0.02
0.74
Manufacturer: NEC
Processor Type: NEC SX-9
Processor Speed: 3.2GHz
Processor Count: 256
Threads: 1
Processses: 256
System Name: SX-9
Interconnect: IXS
MPI: MPI/SX 8.0.0/ISC
Affiliation: TOHOKU UNIVERSITY
Submission Date: 11-06-08
NEC SX-9   3.2GHz   256   1   256
9.40
8.77
5.36
2.80
4.63
80.41
27.92
31.43
3.64
24.96
Manufacturer: NEC
Processor Type: NEC SX-9
Processor Speed: 3.2GHz
Processor Count: 32
Threads: 16
Processses: 2
System Name: SX-9
Interconnect: IXS
MPI: MPI/SX 8.0.0/ISC
Affiliation: TOHOKU UNIVERSITY
Submission Date: 11-06-08
NEC SX-9   3.2GHz   32   16   2
5.12
5.13
3.19
3.16
3.17
30.74
30.52
30.63
26.06
26.25
System Information
System - Processor - Speed - Count - Threads - Processes
LatencyBandwidth
Random
Ring
Natural
Ring
Ping-Pong LatencyPing-Pong BandwidthRandom
Ring
Natural
Ring
MaximumMininumAverageMaximumMinimumAverage
MA/PT/PS/PC/TH/PR/CM/CS/IC/IA/SDusecusecusecusecusecGB/sGB/sGB/sGB/sGB/s
Manufacturer: Cray Inc.
Processor Type: AMD Opteron
Processor Speed: 2.4GHz
Processor Count: 12960
Threads: 1
Processses: 25920
System Name: Red Storm/XT3
Interconnect: Seastar
MPI: xt-mpt/1.5.39 based on MPICH 2.0
Affiliation: DOE/NNSA/Sandia National Laboratories
Submission Date: 11-06-07
Cray Inc. Red Storm/XT3 AMD Opteron   2.4GHz   12960   1   25920
19.58
19.41
10.37
5.69
7.61
2.10
1.98
2.03
0.04
0.10
Manufacturer: Cray Inc.
Processor Type: AMD Opteron
Processor Speed: 2.4GHz
Processor Count: 12800
Threads: 1
Processses: 25600
System Name: Red Storm/XT3
Interconnect: Seastar
MPI: xt-mpt/1.5.39 based on MPICH 2.0
Affiliation: DOE/NNSA/Sandia National Laboratories
Submission Date: 11-06-07
Cray Inc. Red Storm/XT3 AMD Opteron   2.4GHz   12800   1   25600
19.25
19.19
10.25
5.25
7.45
2.10
1.98
2.02
0.04
0.06
Manufacturer: Cray Inc.
Processor Type: AMD Opteron
Processor Speed: 2.4GHz
Processor Count: 12960
Threads: 1
Processses: 25920
System Name: Red Storm/XT3
Interconnect: Cray custom
MPI: MPICH 2 v1.0.2
Affiliation: NNSA/Sandia National Laboratories
Submission Date: 11-10-06
Cray Inc. Red Storm/XT3 AMD Opteron   2.4GHz   12960   1   25920
15.76
14.58
9.31
5.68
7.17
2.10
1.98
2.02
0.06
0.15
Manufacturer: Cray Inc.
Processor Type: AMD Opteron
Processor Speed: 2.6GHz
Processor Count: 10404
Threads: 1
Processses: 10404
System Name: XT3 Dual-Core
Interconnect: Cray SeaStar
MPI: xt-mpt 1.5.25
Affiliation: Oak Ridge National Lab
Submission Date: 11-06-06
Cray Inc. XT3 Dual-Core AMD Opteron   2.6GHz   10404   1   10404
17.04
16.14
8.69
5.36
7.01
1.15
1.15
1.15
0.08
0.20
Manufacturer: IBM
Processor Type: IBM Power5+
Processor Speed: 2.2GHz
Processor Count: 128
Threads: 1
Processses: 128
System Name: P5 P575+
Interconnect: HPS
MPI: poe 4.2.2.3
Affiliation: IBM
Submission Date: 05-08-06
IBM P5 P575+ Power5+   2.2GHz   128   1   128
9.67
6.96
3.95
1.19
3.63
7.23
3.55
3.76
0.22
0.33
Manufacturer: IBM
Processor Type: IBM Power5+
Processor Speed: 2.2GHz
Processor Count: 64
Threads: 1
Processses: 64
System Name: P5 P575+
Interconnect: HPS
MPI: poe 4.2.2.3
Affiliation: IBM
Submission Date: 05-08-06
IBM P5 P575+ Power5+   2.2GHz   64   1   64
8.99
5.77
3.95
1.19
3.48
7.18
3.56
3.93
0.27
0.46
Manufacturer: NEC
Processor Type: NEC SX-7
Processor Speed: 0.552GHz
Processor Count: 32
Threads: 16
Processses: 2
System Name: NEC SX-7
Interconnect: non
MPI: MPI/SX 7.0.6
Affiliation: Tohoku University, Information Synergy Center
Submission Date: 03-24-06
NEC SX-7   0.552GHz   32   16   2
4.83
4.81
4.20
4.15
4.18
16.22
16.21
16.21
15.74
15.74
Manufacturer: NEC
Processor Type: NEC SX-7
Processor Speed: 0.552GHz
Processor Count: 32
Threads: 1
Processses: 32
System Name: NEC SX-7
Interconnect: non
MPI: MPI/SX 7.0.6
Affiliation: Tohoku University, Information Synergy Center
Submission Date: 03-24-06
NEC SX-7   0.552GHz   32   1   32
14.80
15.35
9.40
4.24
8.55
15.83
9.75
13.93
10.13
11.12
Manufacturer: NEC
Processor Type: NEC SX-8
Processor Speed: 2GHz
Processor Count: 40
Threads: 8
Processses: 5
System Name: NEC SX-7C
Interconnect: IXS
MPI: MPI/SX 7.1.3
Affiliation: Tohoku University, Information Synergy Center
Submission Date: 03-24-06
NEC SX-7C SX-8   2GHz   40   8   5
6.67
6.47
5.00
4.96
4.99
13.06
12.98
13.03
12.40
12.39
Manufacturer: NEC
Processor Type: NEC SX-8
Processor Speed: 2GHz
Processor Count: 40
Threads: 1
Processses: 40
System Name: NEC SX-7C
Interconnect: IXS
MPI: MPI/SX 7.1.3
Affiliation: Tohoku University, Information Synergy Center
Submission Date: 03-24-06
NEC SX-7C SX-8   2GHz   40   1   40
10.33
7.16
5.06
2.24
4.50
29.76
12.99
16.04
1.33
12.27
Manufacturer: Cray Inc.
Processor Type: AMD Opteron
Processor Speed: 2.4GHz
Processor Count: 5208
Threads: 1
Processses: 5208
System Name: XT3
Interconnect: Cray Seastar
MPI: xt-mpt/1.3.07
Affiliation: Oak Ridge National Lab - DOD Office of Science
Submission Date: 11-12-05
Cray Inc. XT3 AMD Opteron   2.4GHz   5208   1   5208
9.18
8.51
8.18
6.12
7.07
1.15
1.15
1.15
0.20
0.65
Manufacturer: Cray Inc.
Processor Type: AMD Opteron
Processor Speed: 2.4GHz
Processor Count: 5208
Threads: 1
Processses: 5208
System Name: XT3
Interconnect: Cray Seastar
MPI: xt-mpt/1.3.07
Affiliation: Oak Ridge National Laboratories - DOE Office of Science
Submission Date: 11-12-05
Cray Inc. XT3 AMD Opteron   2.4GHz   5208   1   5208
9.33
8.51
8.51
6.38
7.37
1.15
1.15
1.15
0.20
0.58
Manufacturer: Cray Inc.
Processor Type: AMD Opteron
Processor Speed: 2.4GHz
Processor Count: 5208
Threads: 1
Processses: 5208
System Name: XT3
Interconnect: Cray Seastar
MPI: xt-mpt/1.3.07
Affiliation: Oak Ridge National Laboratory, DOE Office of Science
Submission Date: 11-10-05
Cray Inc. XT3 AMD Opteron   2.4GHz   5208   1   5208
9.33
8.51
8.51
6.38
7.37
1.15
1.15
1.15
0.20
0.58
Manufacturer: IBM
Processor Type: IBM PowerPC 440
Processor Speed: 0.7GHz
Processor Count: 32768
Threads: 1
Processses: 16384
System Name: Blue Gene/L
Interconnect: Blue Gene Custom Interconnect
MPI: MPICH 1.1
Affiliation: IBM T.J. Watson Research Center
Submission Date: 11-04-05
IBM Blue Gene/L PowerPC 440   0.7GHz   32768   1   16384
5.88
3.44
6.74
2.90
4.70
0.16
0.15
0.16
0.02
0.18
Manufacturer: IBM
Processor Type: IBM PowerPC 440
Processor Speed: 0.7GHz
Processor Count: 131072
Threads: 1
Processses: 65536
System Name: Blue Gene/L
Interconnect: Custom Torus / Tree
MPI: MPICH2 1.0.1
Affiliation: National Nuclear Security Administration
Submission Date: 11-02-05
IBM Blue Gene/L PowerPC 440   0.7GHz   131072   1   65536
7.78
3.43
8.81
2.95
5.92
0.16
0.15
0.16
0.01
0.19
Manufacturer: IBM
Processor Type: IBM PowerPC 440
Processor Speed: 0.7GHz
Processor Count: 131072
Threads: 1
Processses: 65536
System Name: Blue Gene/L
Interconnect: Custom Torus / Tree
MPI: MPICH2 1.0.1
Affiliation: National Nuclear Security Administration
Submission Date: 11-02-05
IBM Blue Gene/L PowerPC 440   0.7GHz   131072   1   65536
7.89
3.64
8.98
3.10
6.08
0.16
0.15
0.16
0.01
0.18
System Information
System - Processor - Speed - Count - Threads - Processes
LatencyBandwidth
Random
Ring
Natural
Ring
Ping-Pong LatencyPing-Pong BandwidthRandom
Ring
Natural
Ring
MaximumMininumAverageMaximumMinimumAverage
MA/PT/PS/PC/TH/PR/CM/CS/IC/IA/SDusecusecusecusecusecGB/sGB/sGB/sGB/sGB/s
Manufacturer: Cray Inc.
Processor Type: Cray X1E
Processor Speed: 1.13GHz
Processor Count: 1008
Threads: 1
Processses: 1008
System Name: X1
Interconnect: Cray Modified 2D torus
MPI: MPT
Affiliation: DOE/Office of Science/ORNL
Submission Date: 11-02-05
Cray Inc. X1 Cray E   1.13GHz   1008   1   1008
16.30
14.66
9.58
6.40
8.44
10.83
5.96
8.32
0.15
3.03
Manufacturer: Cray Inc.
Processor Type: Cray X1E
Processor Speed: 1.13GHz
Processor Count: 248
Threads: 1
Processses: 248
System Name: mfeg8
Interconnect: Modified 2D Torus
MPI: mpt 2.4
Affiliation: Cray
Submission Date: 06-15-05
Cray Inc. mfeg8 Cray X1E   1.13GHz   248   1   248
14.58
16.54
11.59
6.42
8.07
11.03
8.19
8.90
0.30
3.15
Manufacturer: IBM
Processor Type: IBM PowerPC 440
Processor Speed: 0.7GHz
Processor Count: 1024
Threads: 1
Processses: 1024
System Name: Blue Gene/L
Interconnect: Custom
MPI: MPICH 1.0 customized for Blue Gene/L
Affiliation: Blue Gene Computational Center at IBM T.J. Watson Research Center
Submission Date: 04-11-05
IBM Blue Gene/L PowerPC 440   0.7GHz   1024   1   1024
4.83
4.40
4.25
3.00
3.61
0.16
0.16
0.16
0.03
0.09
Manufacturer: Cray Inc.
Processor Type: Cray X1 MSP
Processor Speed: 0.8GHz
Processor Count: 124
Threads: 1
Processses: 124
System Name: X1
Interconnect: Cray modified 2D torus
MPI: MPT 2.3.0.3
Affiliation: Army High Performance Computing Research Center (AHPCRC)
Submission Date: 05-05-04
Cray Inc. X1 Cray MSP   0.8GHz   124   1   124
20.85
18.09
9.69
8.11
8.98
9.10
5.00
8.50
0.80
4.12
Manufacturer: Cray Inc.
Processor Type: Cray X1 MSP
Processor Speed: 0.8GHz
Processor Count: 124
Threads: 1
Processses: 124
System Name: X1
Interconnect: Cray modified 2D torus
MPI: MPT.2.3.0.3
Affiliation: Army High Performance Computing Research Center (AHPCRC)
Submission Date: 05-03-04
Cray Inc. X1 Cray MSP   0.8GHz   124   1   124
20.85
18.09
9.69
8.11
8.98
9.10
5.00
8.50
0.80
4.12
Manufacturer: Cray Inc.
Processor Type: Cray X1 MSP
Processor Speed: 0.8GHz
Processor Count: 60
Threads: 1
Processses: 60
System Name: X1
Interconnect: Cray modified 2D torus
MPI: MPT 2.4
Affiliation: U.S. Army Engineer Research and Development Center Major Shared Resource Center
Submission Date: 04-26-04
Cray Inc. X1 Cray MSP   0.8GHz   60   1   60
21.16
20.97
9.27
7.99
8.67
9.46
4.41
8.43
1.01
3.43
Manufacturer: Cray Inc.
Processor Type: Cray X1 MSP
Processor Speed: 0.8GHz
Processor Count: 252
Threads: 1
Processses: 252
System Name: X1
Interconnect: X1
MPI: MPT 2.4
Affiliation: Oak Ridge National Laboratory
Submission Date: 04-26-04
Cray Inc. X1 Cray MSP   0.8GHz   252   1   252
22.64
18.82
10.28
8.04
9.15
9.22
4.89
8.41
0.44
2.60


 

Note:
Blank fields in the table above are from early benchmark runs that did not include that individual benchmark.


Column Definitions
Random Ring Latency
Randomly Ordered Ring Latency, reports latency in the ring communication pattern. The communicating processes are ordered randomly in the ring (with respect to the natural ordering of the MPI default communicator) in the ring. The result is averaged over various random assignments of processes in the ring. Unit: micro-seconds
Natural Ring Latency
Naturally Ordered Ring Latency, Unit: micro-seconds
Ping-Pong Maximum Latency
Maximum Ping-Pong Latency, reports the maximum latency for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: micro-seconds
Ping-Pong Minimum Latency
Minimum Ping-Pong Latency, reports the minimum latency for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: micro-seconds
Ping-Pong Average Latency
Average Ping-Pong Latency, reports the average latency for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: micro-seconds
Ping-Pong Maximum Bandwidth
Maximum Ping-Pong Bandwidth, reports the maximum bandwidth for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: Giga Bytes per second
Ping-Pong Minimum Bandwidth
Minimum Ping-Pong Bandwidth, reports the minimum bandwidth for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: Giga Bytes per second
Ping-Pong Average Bandwidth
Average Ping-Pong Bandwidth, reports the average bandwidth for a number of non-simultaneous ping-pong tests. The ping-pongs are performed between as many as possible (there is an upper bound on the time it takes to complete this test) distinct pairs of processors. The test uses MPI standard send and receive routines. Unit: Giga Bytes per second
Random Ring Bandwidth
Randomly Ordered Ring Bandwidth, reports bandwidth achieved in the ring communication pattern. The communicating processes are ordered randomly in the ring (with respect to the natural ordering of the MPI default communicator). The result is averaged over various random assignments of processes in the ring. Unit: Giga Bytes per second per process
Natural Ring Bandwidth
Naturally Ordered Ring Bandwidth, reports bandwidth achieved in the ring communication pattern. The ring is formed with consecutive processes in MPI_COMM_WORLD. Unit: Giga Bytes per second per process




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