Sieving for CRUS - Page 13

MisterBitcoin · 2016-11-14, 20:31

To late to edit it...
I got it solved!
Using "chmod +x" and then start Dash (not the bash) using the following command:

Code:

./sr2sieve_x86_linux -i input.abcd -pmax 5e12

Don´t know why it doesn´t work with the bash...

gd_barnes · 2016-11-15, 04:23

MisterBitcoin,

Per your PM, I now have you reserved for only R523, R533, R548, R549, and S17. Please complete those to at least P=5T and post the files here before reserving any more work. Thanks.

Gary

lalera · 2016-11-15, 13:15

Quote:

Originally Posted by MisterBitcoin

To late to edit it...
I got it solved!
Using "chmod +x" and then start Dash (not the bash) using the following command:

Code:

./sr2sieve_x86_linux -i input.abcd -pmax 5e12

Don´t know why it doesn´t work with the bash...

hi,
you could try to use the -t switch (works only with linux)
an example to use 4 cpu cores:
./sr2sieve-x86_64-linux -f factors.txt -i xxx.abcd -P 5e12 -t4

pepi37 · 2016-11-15, 15:42

Quote:

Originally Posted by lalera

hi,
you could try to use the -t switch (works only with linux)
an example to use 4 cpu cores:
./sr2sieve-x86_64-linux -f factors.txt -i xxx.abcd -P 5e12 -t4

If you use -t4 is sieve four time faster or it is below that factor?

lalera · 2016-11-15, 16:05

Quote:

Originally Posted by pepi37

If you use -t4 is sieve four time faster or it is below that factor?

hi,
the speed is below 4 times but it scales good

lalera · 2016-11-15, 23:50

hi,
here is a sieve-file for R565
n= 100k to 200k
sieved to 44T

VBCurtis · 2016-11-16, 01:58

Quote:

Originally Posted by pepi37

If you use -t4 is sieve four time faster or it is below that factor?

It's really close; -t 2 is within 5% of two single-threaded sieves, and -t 8 is <12% slower than 8 single-threaded sieves (that is, faster than 7 single-threaded instances). The code I have is limited to 8 or fewer threads.

MisterBitcoin · 2016-11-16, 17:08

Hi,

R548 is sieved to p=5T. (n=200K to 400K)

Thanks to Lalera and Curtis for "-t". Running one program with all CPU´s seems to be faster than running six (in my case) different threads and bases.

gd_barnes · 2016-11-17, 07:29

Quote:

Originally Posted by MisterBitcoin

Hi,

R548 is sieved to p=5T. (n=200K to 400K)

Thanks to Lalera and Curtis for "-t". Running one program with all CPU´s seems to be faster than running six (in my case) different threads and bases.

Thanks. I previously gave P=5T as a good starting point if you have limited resources. Someone can use the file but will need to do much additional sieving before beginning testing. In the future if you have the resources when sieving n=200K-400K or higher it is better that the files be sieved to at least P=25T.

As a general guideline on this project, n=25K-100K can be sieved to P=5T, 100K-200K to P=15T, and 200K-400K to P=25T. You can see some of the sieve depths that lalera sieved to in the first post of this thread.

MisterBitcoin · 2016-11-17, 17:16

That shouldn´t be the biggest problem, my second server will be, hopefully, online in 24 hrs. (ty strato support...very slow atm).
It will take some days longer. ;)
I´ll focus on sierp, starting with some 25K-100K and 100K-200K work, when the reserved work is done.
My actual server has 6 v Cores and is from an good friend. (cheap. ;)

I gonne set up an patreon account soon, more money=more servers. :))
I have planned 4 servers with 16 cores to add in 2016 (in total 200€/month), plus an Raspberry Pi Cluster.
The cluster wont start before 06/2017, a lot of planning and money is needed. My mate is very busy, not sure if we can start the project...:/

MisterBitcoin · 2016-11-17, 18:29

I got an idea, again. Not sure if it´s needed, but if someone needs inputs files for srsieve (>2 k´s left) try your luck on the github I created.
You simply download the file or copy the lines into a text-file. (You don´t need an account. ;))
Here is the link: https://github.com/AureliusB/CRUS_Sieve

File is looking like:
S/R (base)_(lowest n-value)

2016-11-14, 20:31	#133
MisterBitcoin "Nuri, the dragon :P" Jul 2016 Good old Germany 811 Posts	The solution is here...finaly To late to edit it... I got it solved! Using "chmod +x" and then start Dash (not the bash) using the following command: Code: ./sr2sieve_x86_linux -i input.abcd -pmax 5e12 Don´t know why it doesn´t work with the bash...

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2016-11-15, 04:23	#134
gd_barnes May 2007 Kansas; USA 101·103 Posts	MisterBitcoin, Per your PM, I now have you reserved for only R523, R533, R548, R549, and S17. Please complete those to at least P=5T and post the files here before reserving any more work. Thanks. Gary

2016-11-17, 17:16	#142
MisterBitcoin "Nuri, the dragon :P" Jul 2016 Good old Germany 32B₁₆ Posts	That shouldn´t be the biggest problem, my second server will be, hopefully, online in 24 hrs. (ty strato support...very slow atm). It will take some days longer. ;) I´ll focus on sierp, starting with some 25K-100K and 100K-200K work, when the reserved work is done. My actual server has 6 v Cores and is from an good friend. (cheap. ;) I gonne set up an patreon account soon, more money=more servers. :)) I have planned 4 servers with 16 cores to add in 2016 (in total 200€/month), plus an Raspberry Pi Cluster. The cluster wont start before 06/2017, a lot of planning and money is needed. My mate is very busy, not sure if we can start the project...:/

2016-11-17, 18:29	#143
MisterBitcoin "Nuri, the dragon :P" Jul 2016 Good old Germany 32B₁₆ Posts	I got an idea, again. Not sure if it´s needed, but if someone needs inputs files for srsieve (>2 k´s left) try your luck on the github I created. You simply download the file or copy the lines into a text-file. (You don´t need an account. ;)) Here is the link: https://github.com/AureliusB/CRUS_Sieve File is looking like: S/R (base)_(lowest n-value)