File Splitting Utility

[Antonio]

I looked for a program to split a newPgen output file to share between multiple instances of LLR, but I couldn't find one.

I present here a little utility to take a text file and split it into multiple (2 to 7) output files, for anyone who may be interested.

The selected (single) output file name will be appended with a digit (1 to 7) depending on the number of files requested. i.e. 'split' would become 'split.1', 'split.2', 'split.3' etc.

By default the first line of the input file is copied to all output files, so that the output files are still valid npg format.

After the first line is written the remaining input file lines are copied such that, for example for 3 output files,

output file 1 will contain input file lines 1, 2, 5, 8...
output file 2 will contain input file lines 1, 3, 6, 9...
output file 3 will contain input file lines 1, 4, 7, 9...

Antonio

[axn]

Originally Posted by Antonio

I looked for a program to split a newPgen output file to share between multiple instances of LLR, but I couldn't find one.

NewPGen itself can do this!

Services > Primality test on several machines...

[Antonio]

Originally Posted by axn

NewPGen itself can do this!

Services > Primality test on several machines...

Whoops .. didn't see that, thanks.

Oh well....at least I learned some new programming skills doing it.

[ET_]

Originally Posted by Antonio

Whoops .. didn't see that, thanks.

Oh well....at least I learned some new programming skills doing it.

You are not alone... I did the same a couple years ago...

Luigi

[rogue]

Originally Posted by Antonio

I looked for a program to split a newPgen output file to share between multiple instances of LLR, but I couldn't find one.

If all instances are on the same box or all boxes can talk to one another, use PRPNet. It would make your life easier as you won't have to manage all of those instances.

[Antonio]

Originally Posted by rogue

If all instances are on the same box or all boxes can talk to one another, use PRPNet. It would make your life easier as you won't have to manage all of those instances.

Thanks for the info, will take a look in a couple of weeks, when I get back home.