different rx0, rx1 and totvolume for identical runs

Bug reports, work arounds and fixes

Moderators: arango, robertson

Post Reply
Message
Author
leonjld
Posts: 51
Joined: Fri Feb 27, 2004 6:30 pm
Location: NOAA/NESDIS/STAR

different rx0, rx1 and totvolume for identical runs

#1 Post by leonjld » Tue Mar 08, 2011 5:42 pm

hi all,

I found that roms reports different values for rx0, rx1 and totvolume for identical runs (what I did is just start roms, save the output, kill it, and repeat the process). I am using openmp, can this discrepancy be due to grid partition?

btw, I used the SVN Revision : 508:509M




diff roms3.out roms0.out
3,6c3,6
< Thread # 1 (pid= 26613) is active.
< Thread # 0 (pid= 26613) is active.
< Thread # 2 (pid= 26613) is active.
< Thread # 3 (pid= 26613) is active.
---
> Thread # 1 (pid= 25415) is active.
> Thread # 2 (pid= 25415) is active.
> Thread # 3 (pid= 25415) is active.
> Thread # 0 (pid= 25415) is active.
9c9
< Tuesday - March 8, 2011 - 12:19:49 PM
---
> Tuesday - March 8, 2011 - 12:11:24 PM
346,347c346,347
< Maximum grid stiffness ratios: rx0 = 6.543119E+01 (Beckmann and Haidvogel)
< rx1 = 3.654615E+02 (Haney)
---
> Maximum grid stiffness ratios: rx0 = 2.058878E+03 (Beckmann and Haidvogel)
> rx1 = 1.149973E+04 (Haney)
350c350
< Initial basin volumes: TotVolume = 9.1556865440E+08 m3
---
> Initial basin volumes: TotVolume = 2.1037354567E+09 m3
367a368,405
> 6 ***** 00:03:00 7.027676E-09 4.904616E+01 4.904616E+01 4.340000E+09
> 7 ***** 00:03:30 1.138665E-08 4.904625E+01 4.904625E+01 4.340009E+09
> 8 ***** 00:04:00 1.723085E-08 4.904636E+01 4.904636E+01 4.340019E+09
> 9 ***** 00:04:30 2.476746E-08 4.904647E+01 4.904647E+01 4.340030E+09
....




diff roms3.out roms4.out
3,6c3,6
< Thread # 1 (pid= 26613) is active.
< Thread # 0 (pid= 26613) is active.
< Thread # 2 (pid= 26613) is active.
< Thread # 3 (pid= 26613) is active.
---
> Thread # 0 (pid= 26805) is active.
> Thread # 1 (pid= 26805) is active.
> Thread # 2 (pid= 26805) is active.
> Thread # 3 (pid= 26805) is active.
9c9
< Tuesday - March 8, 2011 - 12:19:49 PM
---
> Tuesday - March 8, 2011 - 12:21:32 PM
346,347c346,347
< Maximum grid stiffness ratios: rx0 = 6.543119E+01 (Beckmann and Haidvogel)
< rx1 = 3.654615E+02 (Haney)
---
> Maximum grid stiffness ratios: rx0 = 1.071285E+04 (Beckmann and Haidvogel)
> rx1 = 5.983591E+04 (Haney)
350c350
< Initial basin volumes: TotVolume = 9.1556865440E+08 m3
---
> Initial basin volumes: TotVolume = 2.1037354567E+09 m3
367a368,390
> 6 ***** 00:03:00 7.027676E-09 4.904616E+01 4.904616E+01 4.340000E+09
> 7 ***** 00:03:30 1.138665E-08 4.904625E+01 4.904625E+01 4.340009E+09
> 8 ***** 00:04:00 1.723085E-08 4.904636E+01 4.904636E+01 4.340019E+09

....

User avatar
arango
Site Admin
Posts: 1102
Joined: Wed Feb 26, 2003 4:41 pm
Location: IMCS, Rutgers University
Contact:

Re: different rx0, rx1 and totvolume for identical runs

#2 Post by arango » Tue Mar 08, 2011 6:29 pm

Please update. I corrected a problem in stiffness.F in revision 533 (01/25/11).

Post Reply