Mersenne: ECM memory usage

2001-03-28 Thread Steve Phipps
I've been carrying out ECM for some time now on small exponents (under 40,000) and I'm curious about the amount of memory that it uses. According to readme.txt, the minimum memory required is 192 times the FFT size. For the exponents I'm looking at, I suspect that the FFT size is of order a

Re: Mersenne: ECM memory usage

2001-03-28 Thread George Woltman
Hi, At 10:08 AM 3/29/2001 +1000, Steve Phipps wrote: For the exponents I'm looking at, I suspect that the FFT size is of order a kilobyte (BTW, can I look the FFT sizes and breakpoints up somewhere?) and so the minimum memory required is less than 1MB. A size 1024 FFT can handle exponents up to