A multiple k/c sieve for Sierpinski/Riesel problems - Page 17

geoff · 2006-12-03, 21:16

Quote:

Originally Posted by Xentar

"3450 3500" (with space) works fine.

[3450-3500 doesn't work]

As far as I can tell this is due to a bug in the mingw32 fscanf() function, I'll try to find a work-around for the next version.

geoff · 2006-12-04, 01:46

Quote:

Originally Posted by Xentar

Think it doesnt work?

3450-3500

ERROR: Malformed first line in `sr5work.txt'.

This is fixed in version 1.4.7, it was my mistake not a bug in mingw32.

jasong · 2006-12-04, 23:30

What does it mean when you are in the proper directory, have the sieve file, have a file with the ranges, and ./sr5sieve gets you "bash: ./sr5sieve: No such file or directory" The file IS there, but the computer doesn't want to run it.

I got the same result with the ecm client. I'm a total linux noob, so it may be a simple error.

geoff · 2006-12-06, 01:48

Quote:

Originally Posted by jasong

What does it mean when you are in the proper directory, have the sieve file, have a file with the ranges, and ./sr5sieve gets you "bash: ./sr5sieve: No such file or directory" The file IS there, but the computer doesn't want to run it.

It probably means your permissions for the directory or the files in it are wrong. What does `ls -la' report?

jasong · 2006-12-07, 01:08

Quote:

Originally Posted by geoff

It probably means your permissions for the directory or the files in it are wrong. What does `ls -la' report?

I'm not sure what you're asking for, so I'll type the line of output for sr5sieve.

Code:

drwxr-xr-x 2 jasong jasong 4096 2006-12-04 17:25 sr5sieve

geoff · 2006-12-07, 01:43

Quote:

Originally Posted by jasong

Code:

drwxr-xr-x 2 jasong jasong 4096 2006-12-04 17:25 sr5sieve

OK, that is a _directory_ called sr5sieve. For `./sr5sieve' to work you need the sr5sieve _executable_ to be in the current directory.

geoff · 2006-12-07, 01:45

`sr5sieve -a K N0 N1' will create an ABC file for sequence K*5^n+/-1 called K.txt with all the terms N0 <= n <= N1 from sr5data.txt. (For use as input to Phrot).

jasong · 2006-12-08, 05:46

Whatever mistake I made before, it is now working.

I dunno.

geoff · 2006-12-10, 23:02

There are some binaries optimised for athlon, pentium-m etc. in the sr5sieve/arch directory. (There is no difference between versions 1.4.8 and 1.4.9 for these machines).

I doubt they will be much faster than the i686 binary, but they are there for comparison if anyone wants to try them out.

michaf · 2006-12-11, 18:49

Quote:

Originally Posted by geoff

I doubt they will be much faster than the i686 binary, but they are there for comparison if anyone wants to try them out.

Indeed, none are faster on an Athlon-64 X2
(at least not noticeable on a few minutes run)

geoff · 2006-12-18, 02:13

Quote:

Originally Posted by jasong

Whatever mistake I made before, it is now working.

Are you running 64-bit Linux? If so it would be a great help if you could try out the linux64-k8 binary and see how speed compares to the linux32-i686 binary on the same machine.

2006-12-07, 01:45	#183
geoff Mar 2003 New Zealand 1157₁₀ Posts	sr5sieve 1.4.8 `sr5sieve -a K N0 N1' will create an ABC file for sequence K*5^n+/-1 called K.txt with all the terms N0 <= n <= N1 from sr5data.txt. (For use as input to Phrot).

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2006-12-04, 23:30	#179
jasong "Jason Goatcher" Mar 2005 3×7×167 Posts	What does it mean when you are in the proper directory, have the sieve file, have a file with the ranges, and ./sr5sieve gets you "bash: ./sr5sieve: No such file or directory" The file IS there, but the computer doesn't want to run it. I got the same result with the ecm client. I'm a total linux noob, so it may be a simple error.

2006-12-08, 05:46	#184
jasong "Jason Goatcher" Mar 2005 3×7×167 Posts	Whatever mistake I made before, it is now working. I dunno.

2006-12-10, 23:02	#185
geoff Mar 2003 New Zealand 13×89 Posts	There are some binaries optimised for athlon, pentium-m etc. in the sr5sieve/arch directory. (There is no difference between versions 1.4.8 and 1.4.9 for these machines). I doubt they will be much faster than the i686 binary, but they are there for comparison if anyone wants to try them out.