Search found 9 matches

by hermann
Mon Jan 09, 2012 7:08 pm
Forum: Job Opportunities
Topic: Postdoc: Marine Ecosystem Prediction - UW Seattle
Replies: 0
Views: 1862

Postdoc: Marine Ecosystem Prediction - UW Seattle

Postdoctoral Research Associate Position in Oceanography at the University of Washington, Seattle, WA The Joint Institute for the Study of the Atmosphere and Ocean (JISAO) at the University of Washington is currently seeking applications for a postdoctoral position in physical oceanography. The focu...
by hermann
Fri Oct 22, 2010 6:57 pm
Forum: ROMS Problems
Topic: stack, heap, and segmentation faults on large simulations
Replies: 4
Views: 1547

Re: stack, heap, and segmentation faults on large simulations

Hi Hernan, Just to clarify, the precise dimensions of our grid are 182x258x60. It seemed our problem was more with stack vs the heap, irrespective of the fp-model issue. Apparently our cluster did have a restricted memory problem (restricted stack size), which the new settings have overcome. Not a R...
by hermann
Fri Oct 22, 2010 5:55 pm
Forum: ROMS Problems
Topic: stack, heap, and segmentation faults on large simulations
Replies: 4
Views: 1547

stack, heap, and segmentation faults on large simulations

We had been having severe issues with ROMS (plus biology) on a new (384 AMD core) cluster, using intel fortran: /opt/intel/Compiler/11.1/069/bin/intel64/ifort When we used the standard options in Linux-ifort.mk: FFLAGS = -heap-arrays -fp-model-precise we were getting random hangups of the execution ...
by hermann
Thu Oct 04, 2007 6:08 pm
Forum: ROMS Ecosystem
Topic: NEMURO Model
Replies: 9
Views: 8757

found the source of error

Well, it turns out the BIO_SEDIMENT section was the source of the bug after all - the undefined variable "indx" was used where "ibio" should be! Things look MUCH better now, total nitrogen is conserving well. Here's the latest diff: ----------------------------------------- /home/users/hermann/ROMS2...
by hermann
Thu Oct 04, 2007 5:04 pm
Forum: ROMS Ecosystem
Topic: NEMURO Model
Replies: 9
Views: 8757

sinking algorithm

John, Thanks for your input; I certainly agree that the ROMS implementation is a big advance in terms of numerics (indeed, it conserves extremely well with sinking turned off). The nitrogen and silicate parts of NEMURO are fundamentally separate, and one should not affect the other as regards conser...
by hermann
Wed Oct 03, 2007 9:24 pm
Forum: ROMS Ecosystem
Topic: NEMURO Model
Replies: 9
Views: 8757

sinking-related total nitrogen leak in NEMURO

Several of us have recently been debugging the ROMS NEMURO code. One way of testing the code is to see whether all categories of nitrogen taken together ("total nitrogen") is conserved in a run. When I run my thus-far debugged version (using Holling grazing) in 1D (BIO_TOY), and set the sinking rate...
by hermann
Wed Aug 22, 2007 6:45 pm
Forum: ROMS Ecosystem
Topic: NEMURO Model
Replies: 9
Views: 8757

values for nemuro.in

Hi group, There appears to be a problem with units in the originally released nemuro.in, such that many of the values are off by a factor of 1.e3. I have confirmed this with Hernan. Here is a diff of the presently distributed file, and what I believe to be the correct values (that is, values corresp...
by hermann
Fri May 26, 2006 8:58 pm
Forum: Job Opportunities
Topic: Modeling support position at UW-JISAO in Seattle, WA
Replies: 0
Views: 1742

Modeling support position at UW-JISAO in Seattle, WA

Research Scientist position, Physical/Biological modeling with ROMS Joint Institute for the Study of the Atmosphere and the Ocean (JISAO) University of Washington, Seattle, WA JISAO has an outstanding opportunity for a Research Scientist/Engineer 2. The position will be full-time; a part-time appoi...
by hermann
Thu Aug 12, 2004 9:22 pm
Forum: Meetings/Workshops
Topic: 2004 ROMS/TOMS Workshop in Venezia, Italia
Replies: 3
Views: 4265

ROMS meeting lodging

Hi, I will be attending the workshop, and will have a bit of gear for a virtual reality demonstration. Can any well-traveled participant recommend a hotel which is especially close to the conference site? For example, is the Hotel Marconi within easy walking distance, when one has luggage? Thanks fo...