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Parallel Technology for the Great Internet Mersenne Prime Search
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Great Internet Mersenne Prime Search
PrimeNet is a world-wide, distributed Internet research computing system created in 1997 for the Great Internet Mersenne Prime Search (GIMPS). For further information, please email primenet@mersenne.org.
The virtual machine's sustained throughput* is currently 30370 billion floating point operations per second (gigaflops), or 2522.9 CPU years (Pentium 90Mhz) computing time per day. For the testing of Mersenne numbers, this is equivalent to 1084 Cray T916 supercomputers, or 542 of Cray's most powerful T932 supercomputers, at peak power. As such, PrimeNet ranks among the most powerful computers in the world. (*Measured in calibrated P5 90Mhz, 32.98 MFLOP units: 25658999 FPO / 0.778s using 256k FFT.)
For more information, please see the GIMPS home page, the PrimeNet Statistics or the PrimeNet Project Credits.
Current PrimeNet Atomic Clock UTC Time is Saturday 17 May 2008, 18:18:31
Current Internet PrimeNet Server World Test Status
All Times are in Coordinated Universal Time (UTC)These reports indicate the virtual supercomputer's operating status, automatically updated by the server every hour, on the hour. A complete table of the GIMPS overall project status is also available.
They consist of three sections: (1) system performance information and active exponent test ranges, (2) current assignments issued to GIMPS test clients, (3) exponents that have been eliminated as Mersenne prime candidates since the last master database synchronization. Section (1) does not include exponents in progress received from clients outside active IPS test ranges.
Mersenne PrimeNet Server 4.0 (Build 4.0.101) Status Summary Report 17 May 2008 18:00 (17 May 2008 11:00 Pacific) This report is updated every 60 minutes All dates and times are Coordinated Universal Time (UTC) Assignment overdue check-in is set at 60.0 days (0.0 days to expire) ------- Aggregate CPU Statistics, P90 Units* ------- Last 7 Days Average Cumulative Today from 11 May 2008 06h from 17 May 2008 06h ---------------------- ---------------------------------- Test Type CPU yr/day GFLOP/s CPU years CPU yr/day GFLOP/s ------------ ---------- ---------- ---------- ---------- ---------- Lucas-Lehmer 2424.837 29189.457 1192.022 2391.906 28793.049 Factoring 88.454 1064.787 34.414 69.056 831.271 ---------- ---------- ---------- ---------- ---------- TOTALS 2513.291 30254.244 1226.436 2460.962 29624.320 ------- Internet CPU and Server Resources ------- Machines Applied on 51578 Accounts Server Synchronization 15 May 2008 03:47 Intel Pentium 4 : 46261 Total exponents merged : 780459 AMD Athlon : 20344 Updated only : 765655 Intel Pentium III : 1265 Added for testing : 0 Intel Pentium II : 179 Retained in cleared list : 4880 Intel Celeron : 4042 Cleared tests removed : 9924 Intel Pentium Pro : 10 Manual tests removed / purged: 0 Intel Pentium : 54 AMD K6 : 51 Total Cleared by PrimeNet : 1290271 Intel 486 : 3 Cyrix : 641 Unspecified type : 105 ---------------------- ------- TOTAL : 72955 ------- Mersenne Exponent Test State ------- Assigned in Tests Cleared Since Last Synchronization Factoring only : 9211 Factored composite : 616 Lucas-Lehmer testing : 85473 Lucas-Lehmer composite: 3790 Double-checking LL : 11979 Double-checked LL : 1423 ---------------------- ------- ---------------------- ------- TOTAL : 106663 TOTAL : 5829 ------- Mersenne Exponent Test Distribution Map ------- Exponent Range Trial Factoring Lucas-Lehmer Double Checking Avail Out Factd Avail Out Done Avail Out Done -------------------- -----=-----=----- -----=-----=----- -----=-----=----- 16300000 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Calibrated by benchmark P5 90Mhz, 32.98 MFLOP units: 25658999 FLOP/0.778s (256k FFT). (c)1997-2008 Entropia, Inc.Refer to the PrimeNet statistics charts for more information.
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© 1997-2000 Entropia
