Sr2sieve on PPC/Linux

[rogue]

Originally Posted by BlisteringSheep

I haven't been able to get in touch with him lately. The last time I did, the PPC version was OS/X only (I need Linux).

With the bugfix to expmod.s, he should be able to send you the source so that you can build it yourself. Did you PM him? I thought that I had seen posts from him in the past couple of weeks. Barring any licensing, I can also send you the source, but I don't know if it is the latest.

[jasong]

Originally Posted by BlisteringSheep

I haven't been able to get in touch with him lately. The last time I did, the PPC version was OS/X only (I need Linux).

PPC Linux you say? You wouldn't happen to know of a forum that could help me install PPC Linux on a Nintendo Wii, would you? (Nintendo Wii has a PPC processor)

[geoff]

Originally Posted by axn1

You could always benchmark it yourselves

Anyway, on x86, I think sr2sieve is about 35% slower than proth_sieve for sob. I am quoting this from memory, so I could be wrong. If you can do the benchmark and post it here, that'd be super -- especially with a 64 bit build of sr2sieve.

From jasong's reports it looks like the 64-bit sr5sieve binary is nearly 30% faster than the 32-bit binary for the base 5 sieve. I think I could increase that gap if I had an Athlon64 to experiment with. It would be interesting to get these same figures for sr2sieve because with SoB.dat much more time is spend in the hashtable/mulmod code, whereas with the base 5 sieve more time is spent in the invmod/powmod/bitmap code.

If anyone wants to test this, there are 32- and 64-bit Linux binaries here. Just download the current SoB.dat, put a test range in sr2work.txt, and run `sr2sieve -s'. (or `sr2sieve -r' for riesel.dat).

[jasong]

jasong@linux0:~/dc/sob$ ./sr2sieve -s
sr2sieve 1.4.14 -- A sieve for the Sierpinski/Riesel Base 2 projects.
Reading `SoB.dat' ...
ERROR: Cannot open `SoB.dat'.
jasong@linux0:~/dc/sob$ ls
factexcl.txt   fact.txt       - READ_ME_SETUP.txt  SoBStatus.dat  sr2sieve.log
factrange.txt  nextrange.txt  sob.dat              sr2sieve       sr5work.txt

Perhaps someone could send me a script that will make a new file under the s52sieve format.

[rogue]

Originally Posted by jasong

jasong@linux0:~/dc/sob$ ./sr2sieve -s
sr2sieve 1.4.14 -- A sieve for the Sierpinski/Riesel Base 2 projects.
Reading `SoB.dat' ...
ERROR: Cannot open `SoB.dat'.
jasong@linux0:~/dc/sob$ ls
factexcl.txt   fact.txt       - READ_ME_SETUP.txt  SoBStatus.dat  sr2sieve.log
factrange.txt  nextrange.txt  sob.dat              sr2sieve       sr5work.txt

Perhaps someone could send me a script that will make a new file under the s52sieve format.

Is your filesystem case sensitive? If so, then rename "sob.dat" to "SoB.dat".

[geoff]

Originally Posted by jasong

ERROR: Cannot open `SoB.dat'.
jasong@linux0:~/dc/sob$ ls
factexcl.txt   fact.txt       - READ_ME_SETUP.txt  SoBStatus.dat  sr2sieve.log
factrange.txt  nextrange.txt  sob.dat              sr2sieve       sr5work.txt

Type

mv sob.dat SoB.dat
mv sr5work.txt sr2work.txt

and try again :-)

[jasong]

Originally Posted by geoff

Type

mv sob.dat SoB.dat
mv sr5work.txt sr2work.txt

and try again :-)

p=1000000032774601, 441084 p/sec, 0 factors, 0.66% done, ETA 30 Dec 00:11

Unfortunately, I can´t seem to track down a Linux proth sieve download.

[Joe O]

Originally Posted by jasong

p=1000000032774601, 441084 p/sec, 0 factors, 0.66% done, ETA 30 Dec 00:11

Unfortunately, I can´t seem to track down a Linux proth sieve download.

http://81.233.34.242/proth_sieve.php

[jasong]

Originally Posted by Joe O

http://81.233.34.242/proth_sieve.php

Thanks, Joe, but that doesn't seem to have the file I need. :(

[Joe O]

Originally Posted by jasong

Thanks, Joe, but that doesn't seem to have the file I need. :(

Those are the only published ones. What are you looking for?

[jasong]

Originally Posted by Joe O

Those are the only published ones. What are you looking for?

Sorry, I should have clarified. It was a bad link. File not found. And I'm looking for the Linux 64-bit AMD one. I THINK SSE2, but I'm not sure.