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Old 2010-10-29, 17:23   #1
CRGreathouse
 
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Aug 2006

22·1,493 Posts
Default GMP-ECM fails on step 2 with B2 > 96M

This is using Jeff Gilchrist's 64-bit Windows binary. It causes an AppCrash; no error message in the terminal.

Code:
C:\Users\owner>ecm 220000 96000000 < worktodo.ini
GMP-ECM 6.3 [configured with GMP 5.0.1 and --enable-asm-redc] [ECM]
Input number is 1367068808251152599825394438427050917834684642916714302956759433
86422659594169058181440482075770537702060920760622000611512112885689065092620523
67086659406684660725406254868457237857013392598889109586963845751962788430485745
46480919063486896437937504504918609630553338723042546990948035302151882510393267
90936647157153998296243151854164728032282229395280189647684579768987768465433627
26327994194404647247677789401390767522962971310416367164097299697923480332418205
47010144853874277914015150711842090339401717108310510152579121327166001211194406
72925246514490069720038091747256362721224766490216603 (597 digits)
Using B1=220000, B2=96985362, polynomial x^2, sigma=821302594
Step 1 took 11278ms
Step 2 took 2746ms

C:\Users\owner>ecm 220000 97000000 < worktodo.ini
GMP-ECM 6.3 [configured with GMP 5.0.1 and --enable-asm-redc] [ECM]
Input number is 1367068808251152599825394438427050917834684642916714302956759433
86422659594169058181440482075770537702060920760622000611512112885689065092620523
67086659406684660725406254868457237857013392598889109586963845751962788430485745
46480919063486896437937504504918609630553338723042546990948035302151882510393267
90936647157153998296243151854164728032282229395280189647684579768987768465433627
26327994194404647247677789401390767522962971310416367164097299697923480332418205
47010144853874277914015150711842090339401717108310510152579121327166001211194406
72925246514490069720038091747256362721224766490216603 (597 digits)
Using B1=220000, B2=119750412, polynomial Dickson(3), sigma=686306119
Step 1 took 11622ms
Code:
Problem signature:
  Problem Event Name:	APPCRASH
  Application Name:	ecm.exe
  Application Version:	0.0.0.0
  Application Timestamp:	4c5c3146
  Fault Module Name:	ecm.exe
  Fault Module Version:	0.0.0.0
  Fault Module Timestamp:	4c5c3146
  Exception Code:	c00000fd
  Exception Offset:	0000000000090147
  OS Version:	6.0.6002.2.2.0.256.6
  Locale ID:	1033
  Additional Information 1:	be3f
  Additional Information 2:	ce5fbab7e41e663636907deea07da3fc
  Additional Information 3:	3425
  Additional Information 4:	69c677deeaef3c7946313b796989e86a
Any ideas?
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