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Old 2004-03-02, 03:24   #1
PrimeCroat
 
Feb 2004
California

32 Posts
Default Exponent unreserved but still computing?

One of the exponents I was assigned was factored and then unreserved (before I remembered to adjust UnreserveDays in Prime.ini). SequentialWorkToDo=0, as well.
Well, after unreserving the exponent, computer still continued to factor the same exponent, and when finished, it left mXxxxxxxx file in Prime95 directory. What happened? I understand why it was unreserved, but not why computer continued to work on it afterwards. Can I get it back, please? Just kidding. Any explanations? Thank you all.

P.S. When I said "factored", I meant it was running P-1 stage (before primality test).

Last fiddled with by PrimeCroat on 2004-03-02 at 03:38 Reason: to clarify
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Old 2004-03-06, 05:36   #2
PrimeCroat
 
Feb 2004
California

32 Posts
Default Would anybody, please, answer my question?

It is not high priority but I would appreciate some insight about the above question. Thank you.
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Old 2004-03-06, 07:33   #3
dsouza123
 
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Sep 2002

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What exactly were you testing ?
Was it a LL/DC that was doing the P-1 factoring pretest ?

Did it send in the result of P-1 when it finished ?

P-1 factoring does recieve (minimal) factoring credit and can be run independently of LL/DC,
so unreserving may just unreserve the LL/DC part of the assignment
if it is the exponent that is being worked on.

One of the parameters for a LL/DC assignment is, has P-1 factoring already been done.

SequentialWorktodo=0 has an effect of decoupling the factoring
from the LL/DC tests by doing the all the factoring work first.
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Old 2004-03-09, 00:01   #4
PrimeCroat
 
Feb 2004
California

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Quote:
Originally Posted by dsouza123
What exactly were you testing ?
Was it a LL/DC that was doing the P-1 factoring pretest ?

Did it send in the result of P-1 when it finished ?
Yes, it was a p-1 factoring pretest. This is the bit from the prime.log about it:

[Sat Feb 28 07:19:25 2004 - ver 23.8]
Sending result to server for exponent 33######
Sending text message to server:
UID: PrimeCroat/Delirious, M33###### no factor to 2^68, WZ1: 449AE108
Unreserving exponent 33######.

Then there is mX###### binary in Prime95 folder that was created on February 28, 2004, 7:48:01 AM (half an hour after unreserving the exponent).

It got ureserved because when I played with settings I inadvertly checked vacation tab so the server gave me an extra exponent but the expected date to finish it was somewhere in Aug/Sept of 2004.
I did get some credit for factoring so that was reported, I just don't understand why the exponent was still worked on even after it was unreserved and why I was left with the binary file. There is nothing in prime.log to indicate that P-1 testing was reported. What do I do with the binary file? Sorry for newbie question, I like to understand how things work. Thank you for the patience and your answers.

Last fiddled with by PrimeCroat on 2004-03-09 at 00:13 Reason: To add and clarify
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Old 2004-03-09, 00:23   #5
dsouza123
 
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Sep 2002

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From the output

UID: PrimeCroat/Delirious, M33###### no factor to 2^68, WZ1: 449AE108

It is very likely it was Trial Factoring not P-1 factoring.

When getting a LL assignment it may do Trial Factoring (TF) first
if it hadn't been TFed to the built in program limit. Sometimes it is only TFed
to a lower amount and then given out.

After the TFing is finished then the P-1 factoring is done.
When P-1 factoring is finished the the Lucas-Lehmer (LL) test is done.

A possible reason for a write to disk after the unreserving is the setting in
Preferences -> Iterations between results file outputs: could be big enough
to delay the write for half an hour.
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Old 2004-03-09, 00:28   #6
PrimeCroat
 
Feb 2004
California

32 Posts
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Thank you.
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