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  Topic: changing the stack at runtime?
DanRRight

Replies: 23
Views: 1830

PostForum: Support   Posted: Sat Apr 06, 2019 12:39 am   Subject:
Johns suggestion will give you almost 1 GB more with /3GB. But without any changes to the code try first playing with the stack allocation number like in my case 950000000 (here stack is almost 1 GB) ...
  Topic: New features for DEBUGGER
DanRRight

Replies: 3
Views: 832

PostForum: Suggestions   Posted: Wed Apr 03, 2019 7:10 am   Subject:
Absolutely a must is highlighting matching DO/ENDDO and IF/ELSE/ENDIF

You hover mouse over IF, ELSE or ENDIF and debugger highlights all other starts and ends of it.

Often you can not find any ...
  Topic: Read and Write Performance
DanRRight

Replies: 17
Views: 908

PostForum: Support   Posted: Thu Jan 24, 2019 7:01 am   Subject:
John, Large data files become pretty common thing. NVMe at 3GB/s speeds are also common, no RAM buffering needed, they become mainstream at < $0.25/GB. Soon many people will start asking why regula ...
  Topic: Read and Write Performance
DanRRight

Replies: 17
Views: 908

PostForum: Support   Posted: Wed Jan 23, 2019 5:18 pm   Subject:
dgurok, Find using Search the testing of I/O speed we have done in this forum 2-3 years ago. There were many demos. One option you already have tried - using unformatted I/O. Optimizing formatted I/O ...
  Topic: MASK_UNDERFLOW@
DanRRight

Replies: 12
Views: 600

PostForum: 64-bit   Posted: Wed Jan 16, 2019 5:44 am   Subject:
Paul, I'd love to prepare the simplest possible variant for you to look as I also have another problems with the code. Hope I will do that quick.

Mecej4 - yes, good idea, forgot about this issue wh ...
  Topic: MASK_UNDERFLOW@
DanRRight

Replies: 12
Views: 600

PostForum: 64-bit   Posted: Tue Jan 15, 2019 1:36 pm   Subject:
Got 8_40. Found no difference in my code diagnostics.

Trying other options, found that the /CHECK compiler option still does not work in /64. During run compiler finds the out of bound error but p ...
  Topic: MASK_UNDERFLOW@
DanRRight

Replies: 12
Views: 600

PostForum: 64-bit   Posted: Tue Jan 15, 2019 9:49 am   Subject:
I am also surprised how and why underflow causes havoc in the code. This is very old problem. In /32 the call mask_underflow@() solved this problem. Here with /64 the PERMIT_UNDERFLOW@(.TRUE.) does no ...
  Topic: MASK_UNDERFLOW@
DanRRight

Replies: 12
Views: 600

PostForum: 64-bit   Posted: Mon Jan 14, 2019 11:58 pm   Subject:
No doubts that this extract works ok, I will not even check it myself. The trick is that something else in the code causing change of the state of FPU or some kind of corruption (debugger incorrectly ...
  Topic: MASK_UNDERFLOW@
DanRRight

Replies: 12
Views: 600

PostForum: 64-bit   Posted: Mon Jan 14, 2019 3:07 pm   Subject:
I have no tools to reveal such content. Looks like even PERMIT_UNDERFLOW@(0_2) does not catch everything.

By experience, the problems before happened when i ran the code with a lot of EXP(-A) when ...
  Topic: MASK_UNDERFLOW@
DanRRight

Replies: 12
Views: 600

PostForum: 64-bit   Posted: Sun Jan 13, 2019 10:28 am   Subject:
Oh my...This revealed amount of roaches i can not believe! I will probably die before cleaning all of them. Thanks, Paul

Somebody probably can get great job using FTN95 by giving ad like this:

...
  Topic: MASK_UNDERFLOW@
DanRRight

Replies: 12
Views: 600

PostForum: 64-bit   Posted: Sat Jan 12, 2019 9:14 am   Subject: MASK_UNDERFLOW@
Was it implemented in 64bits? Somewhere in my code happening underflow and there is no easy way to find this place, large code, lot of data, long execution time, hard to find when and how code starts ...
  Topic: Fortran 2003 and 2008 features
DanRRight

Replies: 22
Views: 3194

PostForum: Suggestions   Posted: Thu Dec 13, 2018 9:24 am   Subject:
Thanks
  Topic: Output Window functionality + clearwin64.dll
DanRRight

Replies: 8
Views: 711

PostForum: ClearWin+   Posted: Fri Nov 23, 2018 8:29 pm   Subject:
is it really possible mixing 32-bit ftn95 and ifort .obj files?There exist universal way which works with all compilers and needs almost zero effort, just changing few letters in BAT file which is doi ...
  Topic: Difference between release and checkmate?
DanRRight

Replies: 32
Views: 2547

PostForum: General   Posted: Thu Nov 22, 2018 8:27 pm   Subject:
But how the code mentioned above claimed to work as real*10 which uses

integer,parameter::k = SELECTED_REAL_KIND(18,4931) ?
  Topic: Difference between release and checkmate?
DanRRight

Replies: 32
Views: 2547

PostForum: General   Posted: Wed Nov 21, 2018 10:36 pm   Subject:
Was precision larger than real*8 implemented in /64 ? The real*10 was missing
 
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