Mersenne Digest Sunday, September 16 2001 Volume 01 : Number 884 ---------------------------------------------------------------------- Date: Wed, 12 Sep 2001 15:44:44 +0100 From: "David Jaggard" Subject: Mersenne: Torture test passes but normal use fails! This is a multi-part message in MIME format. - --------------InterScan_NT_MIME_Boundary Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F8_01C13BA1.D848AEE0" - ------=_NextPart_000_00F8_01C13BA1.D848AEE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear Mailing List, Could somebody give me some advice? I have an overclocked AMD Duron machine using windows 98SE running at = just under 1GHz and have been running prime95 v20 successfully for many = months. I have occasionally had hardware errors when I have tried to = overclock further but at the current speed prime95 v20 is happy. Yesterday (11-09-2001) I upgraded prime95 from v20 to v21. My tests = ressumed only to quickly fail with a SUMOUT/possible hardware failure. I = made some small changes to speed and core voltage but could not correct = the errors. I decided to run the torture test and I left it running all = night. This morning I viewed results.txt and all tests had passed yet = the normal operation of the program still fails. Surely if my system was = unstable the torture test should fail! Is it possible that in the new = release the normal primality tests are more stressful than the torture = test? Or is there a bug? On a seperate matter why is there no processor catagory for AMD Duron = chips and yet there is a catagory for Intel Celerons? I'm proud of the = fact that my budget setup is faster than some ready-made Athlon 1GHz = systems! Thanks in advance for any feedback Davy - ------=_NextPart_000_00F8_01C13BA1.D848AEE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dear Mailing List,
 
Could somebody give me some = advice?
 
I have an overclocked AMD Duron machine = using=20 windows 98SE running at just under 1GHz and have been running prime95 = v20=20 successfully for many months. I have occasionally had hardware errors = when I=20 have tried to overclock further but at the current speed prime95 v20 is=20 happy.
 
Yesterday (11-09-2001) I upgraded = prime95 from v20=20 to v21. My tests ressumed only to quickly fail with a SUMOUT/possible = hardware=20 failure. I made some small changes to speed and core voltage but could = not=20 correct the errors. I decided to run the torture test and I left it = running all=20 night. This morning I viewed results.txt and all tests had passed yet = the normal=20 operation of the program still fails. Surely if my system was unstable = the=20 torture test should fail! Is it possible that in the new release the = normal=20 primality tests are more stressful than the torture test? Or is there a=20 bug?
 
On a seperate matter why is there no = processor=20 catagory for AMD Duron chips and yet there is a catagory for Intel = Celerons? I'm=20 proud of the fact that my budget setup is faster than some ready-made = Athlon=20 1GHz systems!
 
Thanks in advance for any = feedback
 
Davy
- ------=_NextPart_000_00F8_01C13BA1.D848AEE0-- - --------------InterScan_NT_MIME_Boundary-- _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 17 Sep 2001 00:39:43 +0200 From: Klaus Kastens Subject: Mersenne: Glucas version 2.8b1 released (Mac OS X only) Hi all, to fix a compile problem under Mac OS X reported by Jonas Hansbo, Glucas 2.8b1 has been released. Source and binaries are available from: http://sourceforge.net/project/showfiles.php?group_id=24518&release_id=52457 This release is only relevant to Mac OS X users, no changes for other platforms. Mac OS users with MPC7400(G4) or MPC7450(G4+/G4e) processors still using Glucas 2.8a or older should consider upgrading to Glucas 2.8b1: I finally received some timings for these processors showing some 30% performance increase from prefetch hinting introduced in Glucas 2.8b. Thanks to Tom Cage, Ludovic Ferrandis, Jonas Hansbo and Thomas Perrier for their help in testing and supplying binaries. More information about Glucas is available from the projects homepage: http://glucas.sourceforge.net/ Regards, Klaus _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ End of Mersenne Digest V1 #884 ******************************