Search found 15 matches

by spitz
Mon Apr 29, 2024 10:54 pm
Forum: Job Opportunities
Topic: Post-Doctoral Position in physical/biogeochemical and individual based modeling
Replies: 0
Views: 4312

Post-Doctoral Position in physical/biogeochemical and individual based modeling

Post-Doctoral Position in physical/biogeochemical and individual based modeling Position The College of Earth, Ocean, and Atmospheric Sciences (CEOAS) at Oregon State University is seeking applicants for a 2-year post-doctoral position. We seek a modeler colleague who will join an interdisciplinary ...
by spitz
Tue Nov 16, 2021 1:05 am
Forum: ROMS Bugs
Topic: Typo in state_read.F
Replies: 1
Views: 8807

Typo in state_read.F

The line 902 in state_read.F is
WRITE (stdout,40) TRIM(Vname(2,ifield)), Fmin, Fmax

but should be

WRITE (stdout,40) TRIM(Vname(2,idTvar(itrc)), Fmin, Fmax

ifield is only defined if "ifdef ADJUST_BOUNDARY"
by spitz
Mon Nov 15, 2021 10:45 pm
Forum: ROMS Discussion
Topic: Segmentation fault and debugging
Replies: 0
Views: 2971

Segmentation fault and debugging

After many years in modeling, I learned that running a model on different number of processors can (but should not) give different results. I also like to run the model in OPENMP and MPI to have a better understanding of what the results would look like if I give my code (bio+roms) to somebody ...
by spitz
Thu Aug 12, 2021 4:13 pm
Forum: ROMS Discussion
Topic: MPI - tiling on POWER8
Replies: 6
Views: 16087

Re: MPI - tiling on POWER8

I have not solved the problem with the tiling. As Kate says, if the answer changes for different tilings, there is a bug. I indeed believe that there must be a problem either with the ROMS distribution code, POWER8 MPI or xlf. But where, this is the question that will require digging. The different ...
by spitz
Thu Jun 25, 2020 3:53 pm
Forum: ROMS Discussion
Topic: MPI - tiling on POWER8
Replies: 6
Views: 16087

Re: MPI - tiling on POWER8

Thanks Hernan. Sorry for not being clear in my posting. When I said "results", I meant state solution. For example, the difference in zeta in my setup (where I have only one open boundary at the north of the domain, i.e Y-direction) reaches 10-4 after 12hrs of run and keeps increasing. In the ...
by spitz
Thu Jun 25, 2020 2:01 am
Forum: ROMS Discussion
Topic: MPI - tiling on POWER8
Replies: 6
Views: 16087

MPI - tiling on POWER8

This might be an issue that has been answered or partially answered, or it might just be a dumb question. But I will ask anyway since I do not have the answer. While I was trying to figure out the optimal tiling for my specific domain, I found out that the results were depending on the number NtileI ...
by spitz
Wed Jun 24, 2020 6:42 pm
Forum: ROMS Bugs
Topic: Small fortran bug in nl_ocean.h
Replies: 1
Views: 6100

Small fortran bug in nl_ocean.h

I just downloaded the latest version of ROMS. While most of the compilers do not have a problem, the IBM xlf90 and xlf90_r has a problem with the syntax and the compilation stops with an error !----------------------------------------------------------------------- ! If blowing-up, save latest model ...
by spitz
Fri Jul 12, 2019 10:29 pm
Forum: ROMS Bugs
Topic: NEMURO - Opal equation
Replies: 0
Views: 1688

NEMURO - Opal equation

After rereading the NEMURO code in nemuro.h, I believe that there is a mistake in the term Bio(i,k,iopal)=Bio(i,k,iopal)+(GraPL2ZL+GraPL2ZP)*RSiN(ng) Indeed, this would mean that all the grazing in terms of silica would be going to the opal pool, which is not correct as only a fraction of it should ...
by spitz
Thu Apr 06, 2017 3:22 am
Forum: ROMS Installation
Topic: New version of cpp - Linux IBM power 8 compiler
Replies: 2
Views: 3219

Re: New version of cpp - Linux IBM power 8 compiler

Thanks Kate, it worked perfectly.
by spitz
Wed Apr 05, 2017 1:45 am
Forum: ROMS Installation
Topic: New version of cpp - Linux IBM power 8 compiler
Replies: 2
Views: 3219

New version of cpp - Linux IBM power 8 compiler

I just got access to a power 8 IBM running Linux with compilers xlf90,xlf95, xlf90_r and xlf95_r and more. The cpp version is 6.2.0. I cannot go back to older versions of cpp. Unfortunately, this version of cpp does not have the -traditional option anymore. This creates problems with the ...
by spitz
Tue Sep 22, 2015 6:29 pm
Forum: Meetings/Workshops
Topic: Ocean Sciences 2016 - One more session of interest
Replies: 0
Views: 7760

Ocean Sciences 2016 - One more session of interest

Please consider submitting an abstract, submission deadline: 23 September Shelf-slope exchange: physical, biogeochemical and biological processes at the interface of the continental shelf and the deep ocean Session ID#: 9621 Session Description: The exchanges of mass, energy and constituents between ...
by spitz
Thu Dec 05, 2013 1:21 am
Forum: ROMS Bugs
Topic: POWELL without SPITZ CPP option
Replies: 1
Views: 2372

Re: POWELL without SPITZ CPP option

Francois

You are right. The light coding without the Spitz formulation turned on is wrong. And the Spitz formulation is not really due to Spitz but to our great friend Fasham.

Y. Spitz
by spitz
Wed Jan 04, 2012 2:09 am
Forum: ROMS Discussion
Topic: some problems about fennel bio model
Replies: 11
Views: 8283

Re: some problems about fennel bio model

A few things to think about 1) the initial conditions for phytoplankton might be too small (1e-6) to allow some growth the first three months (Jan, Feb, March) in the subarctic (not enough light). Since there is still grazing and mortality, after awhile the concentrations might reach values even ...
by spitz
Fri Jul 22, 2011 11:26 pm
Forum: Job Opportunities
Topic: Estuarine Circulation Modeling Research Associate
Replies: 0
Views: 2806

Estuarine Circulation Modeling Research Associate

Estuarine Circulation Modeling Research Associate The Center for Coastal Margin Observation & Prediction (CMOP), a multi-institutional NSF Science and Technology Center hosted at Oregon Health & Science University (OHSU), seeks a Research Associate to join the center’s multi-institutional modeling t ...
by spitz
Fri Jul 22, 2011 11:24 pm
Forum: Job Opportunities
Topic: Post-Doctoral Estuarine Ecological Modeler
Replies: 0
Views: 2741

Post-Doctoral Estuarine Ecological Modeler

Post-Doctoral Estuarine Ecological Modeler The Center for Coastal Margin Observation & Prediction (CMOP), a multi-institutional NSF Science and Technology Center hosted at Oregon Health & Science University (OHSU), seeks a Post-Doctoral Researcher to join the center’s multi-institutional modeling t ...