Re: Mersenne: Re: Are problems more likely in the last 1% of a 10,gigadigit LL?

2002-02-16 Thread Gareth Randall
(Although this is a good idea...) I think we should specifically AVOID adding substantial new functionality to the prime95/mprime program itself. Instead, where possible, this new functionality should be implemented by separate programs. My reasons are: 1. Avoids code bloat for one particular

Re: Mersenne: Re: Are problems more likely in the last 1% of a 10,gigadigit LL?

2002-02-15 Thread bjb
On 14 Feb 2002, at 19:44, Michael Vang wrote: I doubt George would be interested in working in a little simple zip routine when saving/reading save files? It might slow it down too much for some folks (although honestly, it takes a fraction of a second to zip using the lowest

RE: Mersenne: Re: Are problems more likely in the last 1% of a 10,gigadigit LL?

2002-02-15 Thread Aaron Blosser
FWIW bzip2 does a significantly better job of compressing save files than zip, but at the expense of using several times as many CPU cycles. I'm doing a QA run on exponent 67108763 keeping interim files at million iteration intervals, so, by the time I finish, I will have 67 save files.

Mersenne: Re: Are problems more likely in the last 1% of a 10,gigadigit LL?

2002-02-14 Thread Steinar H. Gunderson
On Thu, Feb 14, 2002 at 10:55:00PM +, Russel Brooks wrote: My save files are @1.5M in size. I could save quite a few before space was any concern (too me). Mine are @7M -- and I'm of those who prefer speed and sound level (two Ultra160 SCSI 1rpm 18.2GB disks, in RAID-1, both very quiet)

RE: Mersenne: Re: Are problems more likely in the last 1% of a 10,gigadigit LL?

2002-02-14 Thread Aaron Blosser
My home office has among other things a Compaq RAID array of 5 36GB drives and a few 18GB/9GB as well. MAN OH MAN that thing gets loud! If it weren't for all the other machines and the fan that blows straight on all of them, those drives would drive me nuts. As it is, everything else combined

Mersenne: Re: Are problems more likely in the last 1% of a 10,gigadigit LL?

2002-02-14 Thread Steinar H. Gunderson
On Thu, Feb 14, 2002 at 03:54:41PM -0800, Aaron Blosser wrote: I doubt George would be interested in working in a little simple zip routine when saving/reading save files? AFAIK, most of the space is due to the data being stored in floating-point format instead of integer. There was some talk

Re: Mersenne: Re: Are problems more likely in the last 1% of a 10,gigadigit LL?

2002-02-14 Thread Michael Vang
- Original Message - From: Aaron Blosser [EMAIL PROTECTED] I doubt George would be interested in working in a little simple zip routine when saving/reading save files? It might slow it down too much for some folks (although honestly, it takes a fraction of a second to zip using the

Mersenne: Re: Are problems more likely in the last 1% of a 10,gigadigit LL?

2002-02-13 Thread Steinar H. Gunderson
On Thu, Feb 14, 2002 at 12:47:23AM +, Russel Brooks wrote: How about a Prime95 option where it makes a daily backup for you, saved to a datestamp fileid? It could save them to a subdirectory with the exponent name. That would make it easy for the user to do a cleanup occasionally. Those