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Forum: Msieve

2017-10-10, 01:41

Replies: 11

Weird results of Msieve

Views: 2,644

Posted By jacky

Thank you very much.It's very useful to me.But I...

Thank you very much.It's very useful to me.But I have a question,if limiting the range of leading coefficients to search,will it lead to failure in polynomial selection ?

Forum: Msieve

2017-10-09, 07:27

Replies: 11

Weird results of Msieve

Views: 2,644

Posted By jacky

Now Tesla 100 is 4 times faster than GTX 745.It...

Now Tesla 100 is 4 times faster than GTX 745.It seems not to have achieved the desired result.I think Tesla should be much faster.Should I give more threads?

Forum: Msieve

2017-10-09, 06:57

Replies: 11

Weird results of Msieve

Views: 2,644

Posted By jacky

Thanks.I seem to have found the problem according...

Thanks.I seem to have found the problem according to your answer.
Now I am testing a 155-digit number for np1 on two machines with the same command"msieve.exe -np1 -g 0 -t 4 -s gpu0polyfile".I want...

Forum: Msieve

2017-10-09, 03:21

Replies: 11

Weird results of Msieve

Views: 2,644

Posted By jacky

Thanks. For the first result,why Tesla is...

Thanks.
For the first result,why Tesla is slower if using python to factor.Is it the same reason?

Forum: Msieve

2017-10-09, 03:00

Replies: 11

Weird results of Msieve

Views: 2,644

Posted By jacky

Weird results of Msieve

I have tested to factor C100 on two machines with GPU:

USE_CUDA = True

Command:"..\factMsieve.py example.n"

1、CPU:i7 3.60GHz RAM：8G GTX 745 elapsed time 7hours

2、CPU:E5-2670 2.60GHz...

Forum: Msieve

2017-09-28, 07:40

Replies: 8

Msieve parallel poly selection with several GPU cards

Views: 2,213

Posted By jacky

Thanks for your detailed answer. I want to know...

Thanks for your detailed answer.
I want to know how to calculate the upper limit of the coefficient?I have tryed to calculate it according to the document,but it's not tally with the number in the...

Forum: Msieve

2017-09-28, 01:53

Replies: 8

Msieve parallel poly selection with several GPU cards

Views: 2,213

Posted By jacky

How to give each process the range? USing it as a...

How to give each process the range? USing it as a parameter of msieve ?

Forum: Msieve

2017-09-28, 01:17

Replies: 8

Msieve parallel poly selection with several GPU cards

Views: 2,213

Posted By jacky

If I have 10 cards, I want to split the search...

If I have 10 cards, I want to split the search into 10 slices and give each card a different range,not to search random.Is it right?

Forum: Msieve

2017-09-27, 01:48

Replies: 8

Msieve parallel poly selection with several GPU cards

Views: 2,213

Posted By jacky

Msieve parallel poly selection with several GPU cards

Hello Everyone:
I would like some advice about msieve.
I want to compile Msieve to work with several GPU cards.How should I do to run the polynomial stage in parallel ?

Thanks.

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