From jbnaliboff at ucdavis.edu Sun May 6 21:27:19 2018 From: jbnaliboff at ucdavis.edu (John Naliboff) Date: Sun, 6 May 2018 21:27:19 -0700 Subject: [CIG-ALL] CIG Webinar: ** Next Week ** 10 May @2P - ASPECT 2.0 Message-ID: <825DC682-6991-4E07-AF4C-D69EB795455F@ucdavis.edu> Thursday, MAY 10 @2P PT ASPECT 2.0 Rene Gassmöller, Juliane Dannberg and John Naliboff, UC Davis ASPECT, the Advanced Solver for Problems in Earth's ConvecTion, is a finite element code to simulate mantle convection and long-term tectonic processes. The code is built on modern numerical methods, incorporating adaptive mesh refinement and advanced linear and nonlinear solvers. This webinar highlights ASPECT’s new features, such as a graphical user interface for the creation and modification of input files, an overhaul of the solver for coupled magma/mantle dynamics, a new system for combining boundary and initial conditions, operator splitting methods to decouple fast reactions from advection, a material model for grain size evolution, a Newton solver and many other improvements. Click the link below to join the webinar using zoom on your PC, Mac, Linux, iOS or Android: https://zoom.us/j/384711375 Registration is required. Please log in early. For more information on this and other CIG webinars, please visit us at: https://geodynamics.org/cig/events/webinars/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From jbnaliboff at ucdavis.edu Wed May 9 11:30:13 2018 From: jbnaliboff at ucdavis.edu (John Naliboff) Date: Wed, 9 May 2018 11:30:13 -0700 Subject: [CIG-ALL] CIG Webinar ** TOMORROW ** 10 May @2P - ASPECT 2.0 Message-ID: <49db9e48-5ce6-1b39-326b-59b44624aabb@ucdavis.edu> *Thursday, MAY 10 @2P PT ASPECT 2.0 *//Rene Gassmöller, Juliane Dannberg, Menno Fraters and John Naliboff/, UC Davis/ ASPECT, the Advanced Solver for Problems in Earth's ConvecTion, is a finite element code to simulate mantle convection and long-term tectonic processes. The code is built on modern numerical methods, incorporating adaptive mesh refinement and advanced linear and nonlinear solvers. This webinar highlights ASPECT’s new features, such as a graphical user interface for the creation and modification of input files, an overhaul of the solver for coupled magma/mantle dynamics, a new system for combining boundary and initial conditions, operator splitting methods to decouple fast reactions from advection, a material model for grain size evolution, a Newton solver and many other improvements. Click the link below to join the webinar using zoom on your PC, Mac, Linux, iOS or Android: https://zoom.us/j/384711375 Registration is required. Please log in early. For more information on this and other CIG webinars, please visit us at: https://geodynamics.org/cig/events/webinars/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From ljhwang at ucdavis.edu Thu May 10 09:26:40 2018 From: ljhwang at ucdavis.edu (Lorraine Hwang) Date: Thu, 10 May 2018 09:26:40 -0700 Subject: [CIG-ALL] CGU: Accommodations booking deadline TODAY - May 10 Message-ID: <96F82330-051D-4179-B225-72E2BC2E6E02@ucdavis.edu> Dear 2018 Joint Meeting attendees, A friendly reminder that the deadline for accommodations bookings for the meeting at our highly discounted rates is TODAY (May 10). Instructions on booking accommodations can be found here: https://meeting2018.cgu-ugc.ca/accommodation/ At this time, uptake of our economy rooms at the Radisson and Sheraton Four Points are fully taken up. There remains, however, a still quite large number of rooms available at the Marriott Fallsview, which is extremely close to the conference centre, still a great deal ($100-$150 cheaper per night than is currently available on discount travel websites) and for which the conference will be held financially responsible if too many rooms remain unbooked. Thus, taking advantage of these rates is not only good for your research program's pocketbook, but also for the non-profit societies you belong to. We very much look forward to seeing you in Niagara Falls in about a month! On behalf of the 2018 Joint Meeting Local Organizing Committee This email was sent to lhkellogg at ucdavis.edu by Canadian Geophysical Union 3450 University Street, Montreal, QC, H3A 0E8 Canada To stop receiving these emails, unsubscribe here . -------------- next part -------------- An HTML attachment was scrubbed... URL: From rgassmoeller at ucdavis.edu Thu May 10 18:16:27 2018 From: rgassmoeller at ucdavis.edu (Rene Gassmoeller) Date: Thu, 10 May 2018 18:16:27 -0700 Subject: [CIG-ALL] ASPECT 2.0.0 released Message-ID: We are pleased to announce the release of ASPECT 2.0.0. ASPECT is the Advanced Solver for Problems in Earth's ConvecTion. It uses modern numerical methods such as adaptive mesh refinement, multigrid, and a modular software design to provide a fast, flexible, and extensible mantle convection solver. ASPECT is available from                    https://aspect.geodynamics.org/ and the release is available from         https://github.com/geodynamics/aspect/releases/tag/v2.0.0 This release includes the following changes: - New: Newton solver and defect correction Picard iterations for nonlinear   problems (for the Stokes system) - Melt solver: Overhaul leading to improved performance and stability, better   integration with other plugins - New: Material model with grain size evolution - New: Boundary temperature plugin with evolving core-mantle boundary   temperature based on the heat flux through the core-mantle boundary - New: ASPECT can now compute the geoid in 3D spherical shell geometry - New: Operator splitting for reactions between compositional fields - New: Added a PREM gravity profile - Improved: Significantly reduced memory consumption in models that use many   compositional fields - Improved: A large number of performance improvements for preconditioners,   assembly, seismic tomography initial conditions, and lateral averaging - Improved: More flexibility for boundary and initial conditions, different   plugins can be combined - Improved: The dynamic topography postprocessor now uses the consistent   boundary flux method for computing surface stresses, which is significantly   more accurate - New: Additional RHS force terms in the Stokes system can be added - New particle interpolators: nearest neighbor, bilinear least squares,   harmonic average - New: Graphical user interface for the creation and modification of input   parameter files - Many other fixes and small improvements. - Rework: Updated parameter and section names to make them more consistent and   easier to understand. A script for updating parameter and source files is   provided with the release. A complete list of changes can be found at   https://aspect.geodynamics.org/doc/doxygen/changes_between_1_85_80_and_2_80_80.html Information about how to cite ASPECT can be found at   https://aspect.geodynamics.org/cite.html and   https://geodynamics.org/cig/abc/?software=aspect&version=2.0.0 Wolfgang Bangerth, Juliane Dannberg, Rene Gassmoeller, Timo Heister, Jacqueline Austermann, Menno Fraters, Anne Glerum, John Naliboff, and many other contributors. -- Rene Gassmoeller https://gassmoeller.github.io/ From ljhwang at ucdavis.edu Fri May 11 11:13:24 2018 From: ljhwang at ucdavis.edu (Lorraine Hwang) Date: Fri, 11 May 2018 11:13:24 -0700 Subject: [CIG-ALL] CIG May 2018 Newsletter Message-ID: View this email in your browser News Elements May 2018 Volume 7 Issue 2 Research Highlight The Role of Mantle Convection in Understanding Paleoclimate Using ASPECT Submitted by J. Austermann Over the Plio-Pleistocene ice sheets have periodically advanced and retreated as the Earth oscillated between warm interglacial periods and cold glacial conditions. Understanding the extent of this ice variation and in particular climate during past warm periods is crucial to unraveling the drivers and feedback mechanisms active in our climate system. In my work I use the open source code ASPECT (Advanced Solver for Problems in Earth’s Convection) to investigate what role mantle flow plays in our interpretation of paleo sea level and ice sheet records. [captio n ] The Mid-Pliocene Warm Period (~3 Myr ago) serves an analogue for future climate as it was the last time in Earth’s history when atmospheric carbon dioxide was comparable to present values and temperatures were elevated by 2-3 ºC. In Austermann et al. (2015) we analyze to what extent mantle flow changes the topography beneath the Antarctica continent and in turn affects the Antarctic ice sheet. We use a variety of initial and boundary conditions to calculate current mantle flow and the topography that arises due to flow driven stresses at the Earth’s surface. We found that an upwelling under the Ross Ice Shelf (see Figure) affects topography in the neighboring Wilkes Basin. Coupling output from ASPECT to an ice sheet model predicted ... [more ] WEBINARS May 10 - ASPECT Team More info Connect to webinar May 31 - CIG Bylaws Revision MEETINGS June 10-14: CGU joint with CIG June 19-23: PyLith Hackathon June 19-30: ASPECT Hackathon July 9 - Aug 3: CIDER September: Rayleigh Hackathon NEW RELEASES ASPECT 2.0 Rayleigh 0.9.1 click the icon for citation info ALLOCATIONS Stampede2: 19/85,608 SUs Comet: 0/500,000 SUs Comet GPU: 0/15,000 SUs Oasis: 0/10,000 SUs Ranch: 10,000 GB QUICK LINKS Submit Publications Software CONTACT US contact at geodynamics.org CIG Distinguished Speaker: Sarah Stamps One of our 2017-2018 CIG Distinguished Speakers, Assistant Professor D. Sarah Stamps of the Department of Geosciences at Virginia Tech, gave a presentation at Hampton University entitled Advances in the Kinematics and Geodynamics of the East African Rift System. The presentation highlighted research on continental rifting processes based on the CIG computational code ASPECT. This experience provided an opportunity to communicate CIG-based science and an overview of the community code ASPECT to an audience at an HBCU. Please contact us if you are interested in hosting a Distinguished Speaker. [info ][contact ] Bylaws Revisions - Online Meeting CIG's Bylaws were last updated in 2012. Much has changed since then both in the way we do business and wider adoption of Codes of Conduct in the community. Please join us for an online meeting Thursday May 31 @ 2pm PT at which time we will highlight the proposed updates. Proposed revisions will be posted after the meeting. Member Representatives will have 2 weeks to vote. Revisions to the Bylaws must have an affirmative vote by two-thirds of the Member Representatives. [2012 Bylaws ] [Code of Conduct ] [Member Representatives ][zoom ] Call for Focused Working Groups - Fall 2018 CIG seeks to encourage new ideas from the community by forming Focused Working Groups (FWG). FWG's should address a specific topic and have a clearly defined scope e.g. workshop, white paper, benchmark, etc. They should define concrete outcome(s) achievable within a short time frame, < 2 years. Anyone can propose one! We look forward to your ideas in continuing the CIG community's dynamic leadership in the earth sciences. Look for more details this Fall. 2018 CTSP Workshop A joint CSDMS-CIG workshop focused on Coupling of Tectonic and Surface Processes (CTSP) was held from April 25-27, 2018 to survey both questions and state of the art numerical techniques that simulate surface processes and long term tectonic (LTT) processes in an attempt to define a framework for the development of efficient numerical algorithms that couple across multiple length and time scales. Over 150 researchers attended, in person or virtually, the plenary talks and breakout sessions. The group is working on a white paper which will outline different mechanisms through which the LTT and surface processes communities can collaborate to tackle the science questions and the numerical challenges. [website ] New Staff CIG Headquarters welcomes new members to our team Dr. Juliane Dannberg and Dr. Rene Gassmöller. Their names should be familiar as lead developers of the code ASPECT as well as leaders of several ASPECT tutorials. Dr. Dannberg will continue her research into mantle plumes and contribute to code support and development along with investigations of deep carbon. Dr. Gassmöller joins our software engineering team supporting community code development and infrastructure. [Dannberg ] [Gassmöller ] Congratulations to ... Congratulations to Bruce Buffett, former Chair of the CIG Executive Committee (EC), who was elected to the American Academy of Arts and Sciences. Congratulations to David Bercovici, former EC member, and to Michael Manga who were elected to the U.S. National Academy of Sciences. Copyright © 2018 Computational Infrastructure for Geodynamics All rights reserved. Our mailing address is: One Shields Avenue, UC Davis, Davis, CA 95616 geodynamics.org | Unsubscribe from this list |View this email in your browser Website Email RSS YouTube GitHub Twitter This email was sent to ljhwang at ucdavis.edu why did I get this? unsubscribe from this list update subscription preferences Computational Infrastructure for Geodynamics · One Shields Avenue · UC Davis · Davis, CA 95616 · USA Best, -Lorraine ***************************** Lorraine Hwang, Ph.D. Associate Director, CIG 530.752.3656 -------------- next part -------------- An HTML attachment was scrubbed... URL: From ljhwang at ucdavis.edu Mon May 14 09:59:53 2018 From: ljhwang at ucdavis.edu (Lorraine Hwang) Date: Mon, 14 May 2018 09:59:53 -0700 Subject: [CIG-ALL] 2018 CGU CIG Joint Meeting - Hotel deadline extended Message-ID: 2018 CGU CIG Joint Meeting - June 10-14, Niagara Falls Rooms are still available at the meeting rate for the Marriott Fallsview Hotel for the upcoming 2018 CGU CIG Joint Meeting in Niagara Falls, Canada. Room rates for CGU attendees are discounted ~33%. Book this week before rates go up. Please note that rooms are no longer available at the Radisson and Sheraton Four Points. https://meeting2018.cgu-ugc.ca/accommodation/ Best, -Lorraine ***************************** Lorraine Hwang, Ph.D. Associate Director, CIG 530.752.3656 -------------- next part -------------- An HTML attachment was scrubbed... URL: From bangerth at colostate.edu Mon May 14 16:58:55 2018 From: bangerth at colostate.edu (Wolfgang Bangerth) Date: Tue, 15 May 2018 07:58:55 +0800 Subject: [CIG-ALL] deal.II version 9.0 released Message-ID: [Sent on behalf of the deal.II team.] Version 9.0.0 of deal.II, the object-oriented finite element library awarded the J. H. Wilkinson Prize for Numerical Software, has been released. It is available for free under an Open Source license from the deal.II homepage at https://www.dealii.org/ The major changes of this release are: - deal.II now requires C++11. - Support for curved geometries has been improved. Manifold descriptions are now exclusively handled via manifold_ids and all compatibility code that used boundary indicators has been removed. In addition, every function in the GridGenerator namespace now attaches a default manifold to the curved parts of the domain described by the generated mesh. - deal.II now has a dedicated particles module. The module provides a base class Particle that represents a particle with position, an ID number and a variable number of properties. They are jointly represented by a ParticleHandler class that manages the storage and handling of all particles. - deal.II gained dedicated, first-class support for automatic differentiation libraries and various capabilities (taped and tapeless ADOL-C, Sacado with dynamic forward, reverse, nested dynamic forward, and nested reverse support for first and second derivatives). - Interfaces to a number of additional external libraries has been added. deal.II can now be configured with optional support for Assimp, Gmsh, nanoflann, ROL, ScaLAPACK and Sundials. - This release adds support for computations on GPUs, both, for matrix-based and for matrix-free applications. For matrix-based applications, cuSPARSE and cuSOLVER are used. Support for matrix-free computation on GPUs is preliminary. For now, the evaluation of the operator is limited to meshes without hanging-nodes. - The matrix-free infrastructure in deal.II was significantly overhauled for the current release. The major new contribution is the support of face integrals through a new class FEFaceEvaluation. - deal.II has made extensive use of both the Clang-Tidy and Coverity Scan static analysis tools for detecting bugs and other issues in the code. For example, around 260 issues were detected and fixed using the latter tool. - LinearOperator, a flexible template class that implements the action of a linear operator, now supports computations with Trilinos, Schur complements, and linear constraints. This class is, as of this release, the official replacement for about half a dozen similar (but less general) classes, such as FilteredMatrix, IterativeInverse, and PointerMatrix. - A number of non-standard, special-purpose quadrature rules have been implemented. Among these are ones for truncating standard formulas to simplical domains (QSimplex), singular transformations of the unit cell to the unit simplex (QDuffy), composition of simplical quadrature rules to a combined rule on the unit cell (QSplit), and transformation of the unit square to polar coordinates (QTrianglePolar). - Support for complex-valued vectors at the same level as real-valued vectors. - A new python tutorial program tutorial-1; as well as updates to step-37. In addition, the separate code gallery of deal.II has gained a number of new entries. - Improved support for user-defined run-time parameters: a new ParameterAcceptor class has been added to the library. The class is intended to be used as a base for any class that wants to handle parameters using the ParameterHandler class. - New caching mechanism for expensive grid computations: we introduced a new class GridTools::Cache that caches computationally intensive information about a Triangulation. This class allows the user to query some of the data structures constructed using functions in the GridTools namespace. - More than 330 other features and bugfixes. For more information see - the preprint at https://www.dealii.org/deal90-preprint.pdf - the list of changes at https://www.dealii.org/developer/doxygen/deal.II/changes_between_8_5_0_and_9_0_0.html The main features of deal.II are: - Extensive documentation and 57 fully-functional example programs - Support for dimension-independent programming - Locally refined adaptive meshes - Multigrid support - A zoo of different finite elements - Fast linear algebra - Built-in support for shared memory and distributed parallel computing, scaling from laptops to clusters with 100,000+ processor cores - Interfaces to Trilinos, PETSc, METIS, UMFPACK and other external software - Output for a wide variety of visualization platforms. Matthias, on behalf of the deal.II developer team and many contributors. -- ------------------------------------------------------------------------ Wolfgang Bangerth email: bangerth at colostate.edu www: http://www.math.colostate.edu/~bangerth/ From ljhwang at ucdavis.edu Wed May 23 09:12:17 2018 From: ljhwang at ucdavis.edu (Lorraine Hwang) Date: Wed, 23 May 2018 09:12:17 -0700 Subject: [CIG-ALL] CIG BYLAWS REVISIONS - ONLINE WEBINAR : Thursday May 31 @ 2P PT Message-ID: BYLAWS REVISIONS - ONLINE MEETING Thursday May 31 @ 2pm PT CIG's Bylaws were last updated in 2012. Much has changed since then both in the way we do business and wider adoption of Codes of Conduct in the community. Please join us for an online meeting Thursday May 31 @ 2pm PT at which time we will highlight the proposed updates. Proposed revisions will be posted after the meeting. Member Representatives will have 2 weeks to vote. Revisions to the Bylaws must have an affirmative vote by two-thirds of the Member Representatives. You must register to attend. [zoom ] [2012 Bylaws ] [Code of Conduct ] [Member Representatives ] -------------- next part -------------- An HTML attachment was scrubbed... URL: From ljhwang at ucdavis.edu Wed May 23 15:28:29 2018 From: ljhwang at ucdavis.edu (Lorraine Hwang) Date: Wed, 23 May 2018 15:28:29 -0700 Subject: [CIG-ALL] CIG BYLAWS REVISIONS - ONLINE WEBINAR : Thursday May 31 @ 2P PT In-Reply-To: References: Message-ID: <9D9C32C4-CD7F-4830-BCBE-0B68A740D082@ucdavis.edu> Please use the following link: You are invited to a Zoom meeting. When: May 31, 2018 2:00 PM Pacific Time (US and Canada) Register in advance for this meeting: https://zoom.us/meeting/register/b2440ec578b7536c4ac87b605f06faf5 After registering, you will receive a confirmation email containing information about joining the meeting. > On May 23, 2018, at 9:12 AM, Lorraine Hwang wrote: > > BYLAWS REVISIONS - ONLINE MEETING > Thursday May 31 @ 2pm PT > CIG's Bylaws were last updated in 2012. Much has changed since then both in the way we do business and wider adoption of Codes of Conduct in the community. Please join us for an online meeting Thursday May 31 @ 2pm PT at which time we will highlight the proposed updates. Proposed revisions will be posted after the meeting. Member Representatives will have 2 weeks to vote. Revisions to the Bylaws must have an affirmative vote by two-thirds of the Member Representatives. > > You must register to attend. [zoom ] > > [2012 Bylaws ] [Code of Conduct ] [Member Representatives ] > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From ljhwang at ucdavis.edu Tue May 29 09:35:56 2018 From: ljhwang at ucdavis.edu (Lorraine Hwang) Date: Tue, 29 May 2018 09:35:56 -0700 Subject: [CIG-ALL] CIG BYLAWS REVISIONS - ONLINE WEBINAR : Thursday May 31 @ 2P PT **** THIS WEEK Message-ID: <32D7BAC4-51A2-4543-A725-CDF5CBF61BA8@ucdavis.edu> BYLAWS REVISIONS - ONLINE MEETING Thursday May 31 @ 2pm PT CIG's Bylaws were last updated in 2012. Much has changed since then both in the way we do business and wider adoption of Codes of Conduct in the community. Please join us for an online meeting Thursday May 31 @ 2pm PT at which time we will highlight the proposed updates. Proposed revisions will be posted after the meeting. Member Representatives will have 2 weeks to vote. Revisions to the Bylaws must have an affirmative vote by two-thirds of the Member Representatives. You must register to attend. [zoom ] [2012 Bylaws ] [Code of Conduct ] [Member Representatives ] -------------- next part -------------- An HTML attachment was scrubbed... URL: