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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 27202 billion floating point operations per second (gigaflops), or 2259.7 CPU years (Pentium 90Mhz) computing time per day. For the testing of Mersenne numbers, this is equivalent to 971 Cray T916 supercomputers, or 485.5 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 25 July 2008, 15:17:59
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 25 Jul 2008 15:00 (25 Jul 2008 08:00 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 19 Jul 2008 06h from 25 Jul 2008 06h ---------------------- ---------------------------------- Test Type CPU yr/day GFLOP/s CPU years CPU yr/day GFLOP/s ------------ ---------- ---------- ---------- ---------- ---------- Lucas-Lehmer 2185.941 26313.701 870.925 2332.617 28079.338 Factoring 73.800 888.377 24.743 66.270 797.733 ---------- ---------- ---------- ---------- ---------- TOTALS 2259.741 27202.078 895.668 2398.886 28877.070 ------- Internet CPU and Server Resources ------- Machines Applied on 42515 Accounts Server Synchronization 15 Jul 2008 03:47 Intel Pentium 4 : 39644 Total exponents merged : 792255 AMD Athlon : 16915 Updated only : 778100 Intel Pentium III : 1073 Added for testing : 0 Intel Pentium II : 162 Retained in cleared list : 4576 Intel Celeron : 3440 Cleared tests removed : 9579 Intel Pentium Pro : 8 Manual tests removed / purged: 0 Intel Pentium : 43 AMD K6 : 36 Total Cleared by PrimeNet : 1310367 Intel 486 : 3 Cyrix : 605 Unspecified type : 92 ---------------------- ------- TOTAL : 62021 ------- Mersenne Exponent Test State ------- Assigned in Tests Cleared Since Last Synchronization Factoring only : 8958 Factored composite : 798 Lucas-Lehmer testing : 75489 Lucas-Lehmer composite: 5042 Double-checking LL : 9983 Double-checked LL : 1977 ---------------------- ------- ---------------------- ------- TOTAL : 94430 TOTAL : 7817 ------- 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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47799999 1867 184 7 47800000 47899999 1951 125 8 47900000 47999999 1910 93 7 48000000 48099999 1926 130 25 48100000 48199999 1843 162 10 48200000 48299999 1875 212 7 48300000 48399999 1860 212 7 2 48400000 48499999 1955 210 4 1 48500000 48599999 1761 284 8 3 48600000 48699999 1592 483 7 2 48700000 48799999 1729 391 8 48800000 48899999 1746 293 20 48900000 48999999 1727 397 34 49000000 49099999 1628 507 83 1 49100000 49199999 1433 666 114 1 49200000 49299999 1272 811 107 49300000 49399999 847 1436 81 49400000 49499999 810 1588 38 49500000 49599999 2435 1 49600000 49699999 2466 49700000 49799999 2329 49800000 49899999 2459 49900000 49999999 2391 ------------------ -----=-----=----- -----=-----=----- -----=-----=----- Exponent Range Trial Factoring Lucas-Lehmer Double Checking Avail Out Factd Avail Out Done Avail Out Done -------------------- -----=-----=----- -----=-----=----- -----=-----=----- TOTALS ***** 8958 798 9897 75488 5042 18913 9983 1977 --------------------------------------------------------------------------------- *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.
Web support, contact webmaster@entropia.com.
© 1997-2000 Entropia
