The virtual machine's sustained throughput* is currently 2316 billion floating point operations per second (gigaflops), or 192.4 CPU years (Pentium 90Mhz) computing time per day. For the testing of Mersenne numbers, this is equivalent to 82 Cray T916 supercomputers, or 41 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.)
The link to Cray's "most powerful T932 supercomputers" is broken -- Cray has removed that link: http://www.cray.com/products/systems/gallery/t90.html It appears now that this claim is also somewhat invalid, as Cray's current champion is an 8,192 GFLOP machine called the SX-6/1024M128, a machine with 128 vector processors, or 64 MFLOPS per processing unit. As such, it seems that GIMPS is now truly only equivalent to about one quarter of one of Cray's most powerful SX-6 supercomputers, no? _________________________________________________________________________ Unsubscribe & list info -- http://www.ndatech.com/mersenne/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
