http://www.pism-docs.org/wiki/ 2012-05-19T02:37:01-08:00 http://www.pism-docs.org/wiki/ http://www.pism-docs.org/wiki/lib/tpl/pism_simple/images/favicon.ico text/html 2012-03-06T20:48:02-08:00 http://www.pism-docs.org/wiki/doku.php?id=about&rev=1331099282&do=diff * Contact Constantine Khroulev, Ed Bueler, and Andy Aschwanden by email to <help@pism-docs.org>. * Many of us are in the Glaciers group at the Geophysical Institute, UAF * See also ice sheet modeling at UAF. * Here is a little “org chart”; blue squares are PISM generalists: text/html 2011-10-08T20:06:18-08:00 http://www.pism-docs.org/wiki/doku.php?id=browser&rev=1318133178&do=diff We maintain a fairly-complete HTML * PISM Source Code Browser describing PISM's internals. See this Browser if interested in extending PISM or to understand in greater detail the PISM configuration parameters, options, metadata conventions, and so on. Mostly it is automatically-built from doxygen-style comments in the source code, but it also contains these pages of general interest: text/html 2012-05-04T10:14:53-08:00 http://www.pism-docs.org/wiki/doku.php?id=citing_pism&rev=1336155293&do=diff How to cite PISM To cite PISM please refer to this website www.pism-docs.org and at least one of Bueler and Brown (2009) or Winkelmann et al. (2011) as appropriate to the application. (Click here for these 3 citations as bibtex.) @Misc{pism-web-page, Author = {the PISM authors}, title = {{PISM}, a {P}arallel {I}ce {S}heet {M}odel}, url = {http://www.pism-docs.org}, Year = {2012}, } @article {BBssasliding, AUTHOR = {E. Bueler and J. Brown}, TITLE = {Shall… text/html 2012-05-15T11:11:47-08:00 http://www.pism-docs.org/wiki/doku.php?id=committing&rev=1337109107&do=diff Committing to PISM development * Create an account on <http://github.com>. * Set up Git on your own system, if it is not already present. * Send an e-mail to <help@pism-docs.org>: we will add you to the “team” of PISM developers. We will make you a member of organization <https://github.com/pism>. * Being a project member allows you to post "issues" at the github host, which may be labeled as bugs, tasks, or feature requests. * Clone the PISM source code repository using Git, with a … text/html 2012-05-11T15:05:33-08:00 http://www.pism-docs.org/wiki/doku.php?id=development_version&rev=1336777533&do=diff Getting the dev source code The PISM source code is hosted at github.com/pism/pism. The default branch is master, which is the current stable version of PISM. You can either clone the repository, and then checkout the dev branch, or you can ask for the dev branch from the start: text/html 2011-11-12T10:56:43-08:00 http://www.pism-docs.org/wiki/doku.php?id=doc_misc&rev=1321127803&do=diff Using Matplotlib Basemap toolkit to plot over a map To install Basemap, see <http://matplotlib.sourceforge.net/basemap/doc/html/>. To use a Blue Marble background, you will also need the Python Imaging Library. Below is an example plotting csurf (the magnitude of the horizontal ice velocity at the ice surface) using a logarithmic color scale and marking the 100 m/year contour in black: text/html 2010-04-20T20:04:54-08:00 http://www.pism-docs.org/wiki/doku.php?id=documentation&rev=1271822694&do=diff PISM Documentation includes * an Installation manual * a command-line option [Cheat-Sheet] * a User's Manual * a HTML Class browser text/html 2012-05-01T11:48:14-08:00 http://www.pism-docs.org/wiki/doku.php?id=faq&rev=1335901694&do=diff Frequently Asked Questions (FAQ) How do I visualize PISM results, like modeled surface velocity, using python scripts? * Answer 1: A script which calls the "basemap" toolkit from Matplotlib in python * Answer 2: A more complete tool: PyPISMTools text/html 2011-11-07T12:56:41-08:00 http://www.pism-docs.org/wiki/doku.php?id=getting_pism&rev=1320703001&do=diff The current stable version of PISM is stable0.4. We highly recommend using Git to obtain PISM: git clone git://github.com/pism/pism.git pism0.4 This way you can stay up-to-date by just typing ”git pull” to get the latest bug fixes. To get a development version, see Getting the dev source code. text/html 2012-05-01T12:09:10-08:00 http://www.pism-docs.org/wiki/doku.php?id=greenland_res_study&rev=1335902950&do=diff Something extra: a resolution study FIXME THIS EXAMPLE USES OLD OPTIONS AND WILL NOT WORK UNDER 0.4 OR LATER; NEEDS REDO 100 year run at 40, 20, 10, 5, 3, 2 km resolution At the start of the spinup, using the script spinup.sh described above, there is a 100 year SIA-only run. For a 20km grid and NN processes, the run looks like this: text/html 2012-04-12T15:55:41-08:00 http://www.pism-docs.org/wiki/doku.php?id=home&rev=1334274941&do=diff text/html 2011-11-07T12:58:06-08:00 http://www.pism-docs.org/wiki/doku.php?id=installation&rev=1320703086&do=diff Quick installation summary for the impatient This page assumes you are installing the stable version from source. (See the stable version page for a link to the Debian package, if you do not want the source.) Open a terminal, navigate to where you want the PISM source to be put, and use Git to get PISM stable0.4: text/html 2012-04-26T13:06:26-08:00 http://www.pism-docs.org/wiki/doku.php?id=kspdiverged&rev=1335474386&do=diff Suppose you get a report from PISM like this: PISM WARNING: KSPSolve() reports 'diverged'; reason = -3 = 'DIVERGED_ITS' writing linear system to PETSc binary file SSAFD_kspdivergederror.petsc ... KSP diverged with epsilon=1.00e+16. Retrying with epsilon multiplied by 4.00e+00. text/html 2011-08-24T12:44:40-08:00 http://www.pism-docs.org/wiki/doku.php?id=manual_petsc_setup&rev=1314218680&do=diff PISM uses the CMake script FindPETSc.cmake to learn about your PETSc installation. This page describes a way to build PISM using a PETSc installation that heuristics in FindPETSc.cmake fail on. We need to set the following CMake variables: * PETSC_FOUND - system has PETSc * PETSC_INCLUDES - the PETSc include directories * PETSC_LIBRARIES - Link these to use PETSc * PETSC_COMPILER - Compiler used by PETSc, helpful to find a compatible MPI * PETSC_DEFINITIONS - Compi… text/html 2011-10-11T14:19:22-08:00 http://www.pism-docs.org/wiki/doku.php?id=moving_to_github&rev=1318371562&do=diff Using Git to contribute to PISM Here are the steps you need to make * Install Git * apt-get install git on Ubuntu 11.04 (package name is git-core in earlier) * port install git-core on Mac OS X with MacPorts * Install a GUI for git (for example gitg, git-cola or tig on Linux, text/html 2012-05-10T13:59:56-08:00 http://www.pism-docs.org/wiki/doku.php?id=numerical_pubs&rev=1336687196&do=diff These are publications on model development and numerical methods. See also publications on real modeling applications. Technical reports and theses Background of PISM design text/html 2012-04-02T19:21:23-08:00 http://www.pism-docs.org/wiki/doku.php?id=old_news&rev=1333423283&do=diff Old PISM News Items text/html 2012-05-01T12:21:22-08:00 http://www.pism-docs.org/wiki/doku.php?id=old_paotm&rev=1335903682&do=diff All "PISM Applications of the Month" Starting in September 2011 we have featured one application of PISM per month on the home page. This is the archive. These are published articles or presented posters. See also reference lists of publications on applications of PISM and model-development and numerical methods. text/html 2012-04-02T19:36:10-08:00 http://www.pism-docs.org/wiki/doku.php?id=older_versions&rev=1333424170&do=diff For archival purposes, old PISM versions are still available for download: git clone -b stable0.3 git://github.com/pism/pism.git pism0.3 # released Spring 2010 git clone -b stable0.2 git://github.com/pism/pism.git pism0.2 # released Spring 2009 git clone -b stable0.1 git://github.com/pism/pism.git pism0.1 # released Spring 2008 text/html 2012-03-30T14:43:25-08:00 http://www.pism-docs.org/wiki/doku.php?id=overview&rev=1333147405&do=diff PDF documentation includes * a short PDF [Installation Manual] * a longer PDF [User's Manual], including a Getting Started section which leads you through our SeaRISE Greenland ice sheet model * a one-sheet PDF [Cheat-Sheet] for command-line options; choose “double sided, short-edge binding” as options for printing text/html 2012-05-03T15:01:20-08:00 http://www.pism-docs.org/wiki/doku.php?id=projects&rev=1336086080&do=diff text/html 2012-05-01T09:39:34-08:00 http://www.pism-docs.org/wiki/doku.php?id=publications&rev=1335893974&do=diff These are applications to real ice flow problems. There is also a separate page for publications on model development and numerical methods. text/html 2011-09-22T09:39:16-08:00 http://www.pism-docs.org/wiki/doku.php?id=registration&rev=1316713156&do=diff Please fill out the form below if you would like to get announcements for PISM users. You can also let us know about your research. text/html 2012-03-16T18:49:46-08:00 http://www.pism-docs.org/wiki/doku.php?id=related_links&rev=1331952586&do=diff ice sheet information and data * wikipedia page on ice sheet dynamics * ice sheet modeling at UAF * CReSIS at the University of Kansas has radar data for bed elevation and ice thickness * NSIDC (National Snow and Ice Data Center) is a master source for data text/html 2012-03-27T08:40:04-08:00 http://www.pism-docs.org/wiki/doku.php?id=reporting_bugs&rev=1332866404&do=diff Please see the "issues" at our github host to check if someone already found a similar bug. You can post an issue there, and label it as a bug, if it is new. Alternatively, send a report by e-mail to <help@pism-docs.org>. Please include the following information in all bug-reports: text/html 2010-05-06T23:46:29-08:00 http://www.pism-docs.org/wiki/doku.php?id=requirements&rev=1273218389&do=diff PISM has been successfully run on different architectures and operations systems including * Linux * Unix * Mac OS X * supercomputers such as Cray XT5, Sun Opteron Clusters and Blue Gene To compile and run PISM, these third-party packages are required text/html 2010-07-29T23:54:18-08:00 http://www.pism-docs.org/wiki/doku.php?id=resolution_study_revisions&rev=1280476458&do=diff resolution study performance over PISM revision history First see the "something extra : resolution study" section of the SeaRISE-Greenland worked example page. The current page looks at performance as it has changed with PISM revision. These performance numbers should not be used as a direct predictor of performance with other parameter combinations. Note that MYPPH = model years per processor hour. The runs on 10, 5, 3, 2 km grids were on pingo.arsc.edu at the Arctic Region Supercomputing… text/html 2012-05-03T14:53:45-08:00 http://www.pism-docs.org/wiki/doku.php?id=stable_version&rev=1336085625&do=diff The current release of PISM is pism0.4. The next release is in late spring 2012. Any question welcomed at <help@pism-docs.org>. Source code To build PISM from sources, which is recommended because we can distribute patches, use git to obtain the code: text/html 2012-05-01T12:07:16-08:00 http://www.pism-docs.org/wiki/doku.php?id=topbar&rev=1335902836&do=diff * Home * Getting PISM * Latest release * Optional user registration * Documentation * PDF Documentation * Quick installation * Source code browsers * FAQ * ice sheet modeling * Publications * Applications of PISM * Model development * How to cite PISM text/html 2010-05-10T23:45:38-08:00 http://www.pism-docs.org/wiki/doku.php?id=user_s_manual&rev=1273563938&do=diff The PDF [User's Manual] has a Getting Started section with an advanced Greenland flow model. It describes PISM design principles, possible modeling choices, basic and advanced usage, verification, and a couple of more examples. For installation instructions, see Installation. text/html 2011-07-01T13:05:38-08:00 http://www.pism-docs.org/wiki/doku.php?id=worked-searise-antarctica-uaf&rev=1309554338&do=diff Investigators: * M. Martin, PIK * E. Bueler, UAF * C. Khroulev, UAF * D. DellaGiustina, UAF at left: Surface velocity from 10km grid constant-climate simulation, at end of 5ka run on 256 processes (= 1800 processor-hours). Using PIK physics for ice shelves, running PISM stable0.4. Click image to enlarge. text/html 2012-05-01T12:08:33-08:00 http://www.pism-docs.org/wiki/doku.php?id=worked-searise-greenland&rev=1335902913&do=diff Investigators: * Andy Aschwanden (UAF) * Ed Bueler (UAF) At UAF we run the SeaRISE sea level assessment experiments for Greenland on horizontal grids as fine as 2km (below). In addition to the SeaRISE objectives, we evaluate different stress balances (non-sliding shallow ice and hybrid shallow ice / shallow shelf), and new high resolution bedrock data for the Jakobshavn Isbrae and Petermann Glacier areas. text/html 2011-06-02T12:15:24-08:00 http://www.pism-docs.org/wiki/doku.php?id=worked-storglaciaren&rev=1307045724&do=diff Investigators: * Andy Aschwanden (UAF) * Ed Bueler (UAF) Storglaciaren is a small valley glacier in northern Sweden. The glacier is approximately 3.2 km long and 1 km wide, therefore much smaller than a single grid cell in a typical Greenland model. By the way “Storglaciaren” means “big glacier” in Swedish. Most of the glacier is temperate, except for a thin cold near-surface layer in the ablation zone. Such a thermal structure is often-called a Scandinavian-type structure. Thanks to the n… text/html 2012-05-01T12:19:07-08:00 http://www.pism-docs.org/wiki/doku.php?id=worked_examples&rev=1335903547&do=diff Worked Examples These examples show modeling runs done by the PISM developers. Much of this work overlaps with publications but there is no one-to-one correspondence. We will try to maintain these examples. * Greenland worked example using SeaRISE data * Antarctica worked example using SeaRISE data (=ALBMAP) * Storglaciaren worked example * resolution study (grid refinement) using Greenland SeaRISE data