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Internet PrimeNet Server
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 29655 billion floating point operations per second (gigaflops), or 2463.5 CPU years (Pentium 90Mhz) computing time per day. For the testing of Mersenne numbers, this is equivalent to 1059 Cray T916 supercomputers, or 529.5 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 Friday 16 May 2008, 11:18:44
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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 16 May 2008 11:00 (16 May 2008 04:00 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 10 May 2008 06h from 16 May 2008 06h ---------------------- ---------------------------------- Test Type CPU yr/day GFLOP/s CPU years CPU yr/day GFLOP/s ------------ ---------- ---------- ---------- ---------- ---------- Lucas-Lehmer 2394.382 28822.848 593.716 2901.743 34930.316 Factoring 89.708 1079.879 22.942 112.128 1349.759 ---------- ---------- ---------- ---------- ---------- TOTALS 2484.090 29902.727 616.658 3013.871 36280.074 ------- Internet CPU and Server Resources ------- Machines Applied on 50918 Accounts Server Synchronization 15 May 2008 03:47 Intel Pentium 4 : 45775 Total exponents merged : 780459 AMD Athlon : 20088 Updated only : 765655 Intel Pentium III : 1262 Added for testing : 0 Intel Pentium II : 178 Retained in cleared list : 4880 Intel Celeron : 4010 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 : 639 Unspecified type : 109 ---------------------- ------- TOTAL : 72179 ------- Mersenne Exponent Test State ------- Assigned in Tests Cleared Since Last Synchronization Factoring only : 9212 Factored composite : 584 Lucas-Lehmer testing : 84359 Lucas-Lehmer composite: 3504 Double-checking LL : 11907 Double-checked LL : 1283 ---------------------- ------- ---------------------- ------- TOTAL : 105478 TOTAL : 5371 ------- 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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35 1 48200000 48299999 1374 785 97 48300000 48399999 1152 1037 124 48400000 48499999 929 1438 83 48500000 48599999 1522 808 8 48600000 48699999 2360 48700000 48799999 2406 48800000 48899999 2405 48900000 48999999 2389 ------------------ -----=-----=----- -----=-----=----- -----=-----=----- Exponent Range Trial Factoring Lucas-Lehmer Double Checking Avail Out Factd Avail Out Done Avail Out Done -------------------- -----=-----=----- -----=-----=----- -----=-----=----- TOTALS ***** 9215 584 15217 84358 3504 22542 11907 1283 --------------------------------------------------------------------------------- *P90 CPU time according to Woltman/Kurowski formulation. 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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