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Difference between revisions of "Gcwsieve"
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| + | {{DISPLAYTITLE:gcwsieve}} | ||
| + | {{InfoboxProgram | ||
| + | |title=gcwsieve/gcwsievecl | ||
| + | |workload=[[Sieving program|Siever]] | ||
| + | |release= | ||
| + | |latest=1.5.1<br>2023-03-24 | ||
| + | }} | ||
==Description== | ==Description== | ||
'''gcwsieve''' (and '''gcwsievecl''') are used to create sieve files for a (General) [[Woodall prime]] or (General) [[Cullen prime]] sequence. | '''gcwsieve''' (and '''gcwsievecl''') are used to create sieve files for a (General) [[Woodall prime]] or (General) [[Cullen prime]] sequence. | ||
| − | + | The CPU version of this program was originally written by [[Geoffrey Reynolds]]. It is currently developed by [[Mark Rodenkirch]], who merged it into the packaged distribution of [[mtsieve]] and added GPU support. | |
==Commands overview== | ==Commands overview== | ||
| Line 38: | Line 45: | ||
==See also== | ==See also== | ||
| − | *[[ | + | *[[mtsieve]] |
| + | |||
{{Navbox Sieving program}} | {{Navbox Sieving program}} | ||
[[Category:Sieving program]] | [[Category:Sieving program]] | ||
Latest revision as of 16:09, 30 April 2023
| Workload type | Siever |
| First release | |
| Latest version | 1.5.1 2023-03-24 |
Contents
Description
gcwsieve (and gcwsievecl) are used to create sieve files for a (General) Woodall prime or (General) Cullen prime sequence.
The CPU version of this program was originally written by Geoffrey Reynolds. It is currently developed by Mark Rodenkirch, who merged it into the packaged distribution of mtsieve and added GPU support.
Commands overview
Help with gcwsieve -h.
Installation
Create a folder containing the sieve program.
Creating a new sieve
Example:
gcwsieve.exe -s- -b1024 -n2 -N5000 -P1000000000
Parameters:
-s-: using Woodall (Cullen: -s+)-b1024: using base 1024-n2: lowest n-value-N5000: highest n-value-P1000000000: highest prime to search for
After running the file "gcw_b1024.pfgw" in ABC fileformat will be created.
Continuing an existing sieve file
To continue the search call this (from example above):
gcwsieve.exe -P2000000000 -igcw_b1024.pfgw
Parameters:
-P2000000000: the new sieve-depth is given-igcw_b1024.pfgw: the standard output from first run is used as input file
See also
Sieving program
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