Commits May 2012

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[svn:einsteintoolkit] www/release-info/ (Rev. 859)
by knarf＠cct.lsu.edu 28 May '12

28 May '12

User: knarf Date: 2012/05/28 05:49 PM Added: /release-info/ trestles__1_8.log, trestles__2_8.log Log: add trestles (all ok) File Changes: Directory: /release-info/ ========================= File [added]: trestles__1_8.log Delta lines: <Unavailable> File [added]: trestles__2_8.log Delta lines: <Unavailable>

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New changesets in Carpet Mercurial
by Carpet mercurial repositories 28 May '12

28 May '12

changeset: 3556:b657ed971e64 branch: ET_2012_05 tag: tip user: knarf(a)cct.lsu.edu date: Mon May 28 17:30:54 2012 -0500 summary: create ET_2012_05 release branch

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[McLachlan]McLachlan branch, ET_2012_05, created. f9c7beb75e0d2bfa91e8de341356c2cff0596d87
by Carpet git repositories 28 May '12

28 May '12

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "McLachlan". The branch, ET_2012_05 has been created at f9c7beb75e0d2bfa91e8de341356c2cff0596d87 (commit) - Log ----------------------------------------------------------------- commit f9c7beb75e0d2bfa91e8de341356c2cff0596d87 Author: Erik Schnetter <schnetter(a)gmail.com> Date: Mon May 21 12:59:50 2012 -0400 Regenerate thorn ML_WaveToy and ML_WaveToy_CL commit 3cadea8ebd64017981bd3de827599de2a014a63e Author: Erik Schnetter <schnetter(a)gmail.com> Date: Mon May 21 12:59:18 2012 -0400 Add thorn ML_WaveToy_CL commit d8e9df66d2478ac7ad0b1ed3b24fc0aa048bffa8 Author: Erik Schnetter <schnetter(a)gmail.com> Date: Mon May 21 11:37:35 2012 -0400 Update WaveToy example, generate OpenCL code as well commit ce3b0b3d87ffa53ca8acb4e1b0b5ccbbe4bcc10c Author: Ian Hinder <ian.hinder(a)aei.mpg.de> Date: Wed May 2 18:07:55 2012 +0200 Add test case for NewRad boundary condition for ML_BSSN commit f25d614db972c4c938a4cc658bf2693b37d5055b Author: Ian Hinder <ian.hinder(a)aei.mpg.de> Date: Mon May 14 21:40:19 2012 +0200 Regenerate ML_BSSN_Helper and ML_CCZ4_Helper commit f5fda658d49efce252918ad5bfbc85c1aed8edb6 Author: Ian Hinder <ian.hinder(a)aei.mpg.de> Date: Wed May 2 18:06:55 2012 +0200 ML_BSSN_Helper: Correct background value of phi in NewRad boundary condition Previously the conformalMethod parameter was not taken into account. This will change numerical results. commit 662879ce678f70c4da767733a3833ebbed5e011a Author: Erik Schnetter <schnetter(a)gmail.com> Date: Wed May 2 13:56:05 2012 -0400 Regenerate code commit 6c8d0e4885b1b0505edc36b89143f13255662a62 Author: Erik Schnetter <schnetter(a)gmail.com> Date: Wed May 2 12:55:38 2012 -0400 Handle Theta in helper thorn commit 258a6712039d8cf7856f739b7eba47f7976af444 Author: Erik Schnetter <schnetter(a)gmail.com> Date: Wed May 2 10:02:40 2012 -0400 Regenerate code, removing the *_O* and *_MP thorns commit 620e3b49672b16ad59089b4c8388a3099228614f Author: Erik Schnetter <schnetter(a)gmail.com> Date: Wed May 2 09:06:16 2012 -0400 Replace pi by Pi commit 7c501f7b1a37a66326cdf8140b7c91246187156b Author: Erik Schnetter <schnetter(a)gmail.com> Date: Wed May 2 09:04:40 2012 -0400 Do not generate *_O* and _MP thorns commit ef07762148cc054072096c4c04c46990fa66a46f Author: Erik Schnetter <schnetter(a)gmail.com> Date: Wed May 2 09:04:17 2012 -0400 Handle CCZ4 in Makefile better commit 5fedebcf4433c8841fe7eba43a13a87dff96c3e8 Author: Ian Hinder <ian.hinder(a)aei.mpg.de> Date: Wed May 2 13:46:30 2012 +0200 Makefile: Only copy back CCZ4 if it was generated commit 104d7053eb24785750190b1f322a13ed1772a55a Author: Barry Wardell <barry.wardell(a)gmail.com> Date: Wed May 2 11:18:46 2012 +0100 Add all WaveToy thorns to 'clean' make target. commit 8b21f7a7488401808dba4e80b9525ec5c3309432 Author: Barry Wardell <barry.wardell(a)gmail.com> Date: Wed May 2 11:17:49 2012 +0100 Add CCZ4 thorns to 'clean' make target. commit e962e21cc53e2f24e1dfffef2454f5136ae4ee08 Merge: af04ce2 4d9a82e Author: Barry Wardell <barry.wardell(a)gmail.com> Date: Wed May 2 11:05:27 2012 +0100 Merge branch 'CCZ4' ----------------------------------------------------------------------- hooks/post-receive -- McLachlan

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[svn:einsteintoolkit] www/about/releases/ (Rev. 858)
by schnetter＠cct.lsu.edu 28 May '12

28 May '12

User: eschnett Date: 2012/05/28 02:02 PM Removed: /about/releases/ opencl.html Log: Remove notes again File Changes: Directory: /about/releases/ =========================== File [removed]: opencl.html Delta lines: +0 -45 =================================================================== --- about/releases/opencl.html 2012-05-28 18:56:36 UTC (rev 857) +++ about/releases/opencl.html 2012-05-28 19:02:16 UTC (rev 858) @@ -1,45 +0,0 @@ -<h3>Accelerator Support</h3> - -This release of the Einstein Toolkit adds support for GPUs and - other accelerators. This support comprises three levels of - abstraction, ranging from merely building and running both CUDA and - OpenCL code, to automated code generation targetting GPUs instead of - CPUs. As with any other programming paradigm (such as MPI or - OpenMP), the performance benefits depend on the particular - algorithms used and optimisations that are applied. In addition, the - Simulation Factory greatly aids portability to a wide range of - computing systems. - -  - -At the lowest level, Cactus now supports compiling, building, and - running with either CUDA or OpenCL. CUDA is supported as new - language in addition to C, C++, and Fortran; OpenCL is supported as - an external library, and builds and executes compute kernels via - run-time calls. Details are described in the user's guide (for CUDA) - and in thorn <tt>ExternalLibraries/OpenCL</tt> (for OpenCL). - -Many accelerator platforms today separate between host memory and - device memory, and require explicit copy or map operations to - transfer data. An intermediate level of abstraction aids - transferring grid variables between host and device, using schedule - declarations to keep track of which data are needed where, and - minimising expensive data transfers. For OpenCL, there is a compact - API to build and execute compute kernels at run time. Details are - described in thorns <tt>CactusUtils/Accelerator</tt> - and <tt>CactusUtils/OpenCLRunTime</tt> (with example parameter - file). - -Finally, the code generation - system <a href="http://kranccode.org/">Kranc</a> has been - extended to be able to produce either C++ or OpenCL code, based on - the infrastructure described above. This allows writing GPU code in - a very high-level manner. However, it needs to be stated that the - efficiency of the generated code depends on many variables, - including e.g. the finite differencing stencil radius and the number - of operations in the generated compute kernels. Non-trivial kernels - typically require system-dependent tuning to execute efficiently, as - GPUs and other accelerators generally show a rather unforgiving - performance behaviour. The thorns <tt>McLachlan/ML_WaveToy</tt> and - <tt>McLachlan/ML_WaveToy_CL</tt> are examples, generated from the - same Kranc script, showing the generated C++ and OpenCL code.

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[svn:einsteintoolkit] www/release-info/ (Rev. 857)
by schnetter＠cct.lsu.edu 28 May '12

28 May '12

User: eschnett Date: 2012/05/28 01:56 PM Added: /release-info/ titan__6_2.log Removed: /release-info/ compute__2_2.log Modified: /release-info/ bethe__2_8.log, fermi__2_6.log, nvidia__2_6.log, redshift__2_2.log Log: Update results File Changes: Directory: /release-info/ ========================= File [modified]: bethe__2_8.log Delta lines: <Unavailable> File [removed]: compute__2_2.log Delta lines: <Unavailable> File [modified]: fermi__2_6.log Delta lines: <Unavailable> File [modified]: nvidia__2_6.log Delta lines: <Unavailable> File [modified]: redshift__2_2.log Delta lines: <Unavailable> File [added]: titan__6_2.log Delta lines: <Unavailable>

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[svn:einsteintoolkit] www/about/releases/ (Rev. 856)
by schnetter＠cct.lsu.edu 28 May '12

28 May '12

User: eschnett Date: 2012/05/28 01:41 PM Added: /about/releases/ opencl.html Log: Describe CUDA/OpenCL in the release File Changes: Directory: /about/releases/ =========================== File [added]: opencl.html Delta lines: +45 -0 =================================================================== --- about/releases/opencl.html (rev 0) +++ about/releases/opencl.html 2012-05-28 18:41:18 UTC (rev 856) @@ -0,0 +1,45 @@ +<h3>Accelerator Support</h3> + +This release of the Einstein Toolkit adds support for GPUs and + other accelerators. This support comprises three levels of + abstraction, ranging from merely building and running both CUDA and + OpenCL code, to automated code generation targetting GPUs instead of + CPUs. As with any other programming paradigm (such as MPI or + OpenMP), the performance benefits depend on the particular + algorithms used and optimisations that are applied. In addition, the + Simulation Factory greatly aids portability to a wide range of + computing systems. + +  + +At the lowest level, Cactus now supports compiling, building, and + running with either CUDA or OpenCL. CUDA is supported as new + language in addition to C, C++, and Fortran; OpenCL is supported as + an external library, and builds and executes compute kernels via + run-time calls. Details are described in the user's guide (for CUDA) + and in thorn <tt>ExternalLibraries/OpenCL</tt> (for OpenCL). + +Many accelerator platforms today separate between host memory and + device memory, and require explicit copy or map operations to + transfer data. An intermediate level of abstraction aids + transferring grid variables between host and device, using schedule + declarations to keep track of which data are needed where, and + minimising expensive data transfers. For OpenCL, there is a compact + API to build and execute compute kernels at run time. Details are + described in thorns <tt>CactusUtils/Accelerator</tt> + and <tt>CactusUtils/OpenCLRunTime</tt> (with example parameter + file). + +Finally, the code generation + system <a href="http://kranccode.org/">Kranc</a> has been + extended to be able to produce either C++ or OpenCL code, based on + the infrastructure described above. This allows writing GPU code in + a very high-level manner. However, it needs to be stated that the + efficiency of the generated code depends on many variables, + including e.g. the finite differencing stencil radius and the number + of operations in the generated compute kernels. Non-trivial kernels + typically require system-dependent tuning to execute efficiently, as + GPUs and other accelerators generally show a rather unforgiving + performance behaviour. The thorns <tt>McLachlan/ML_WaveToy</tt> and + <tt>McLachlan/ML_WaveToy_CL</tt> are examples, generated from the + same Kranc script, showing the generated C++ and OpenCL code.

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[svn:einsteintoolkit] TmunuBase/trunk/ (Rev. 14)
by schnetter＠cct.lsu.edu 28 May '12

28 May '12

User: eschnett Date: 2012/05/28 11:27 AM Modified: /trunk/ param.ccl Log: Make timelevels parameter steerable upon recovery File Changes: Directory: /trunk/ ================== File [modified]: param.ccl Delta lines: +1 -1 =================================================================== --- trunk/param.ccl 2011-10-25 18:45:05 UTC (rev 13) +++ trunk/param.ccl 2012-05-28 16:27:51 UTC (rev 14) @@ -16,7 +16,7 @@ PRIVATE: -INT timelevels "Number of time levels" +INT timelevels "Number of time levels" STEERABLE=recover { 0:3 :: "" } 1

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[svn:einsteintoolkit] HydroBase/trunk/ (Rev. 53)
by schnetter＠cct.lsu.edu 28 May '12

28 May '12

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[svn:einsteintoolkit] ADMBase/trunk/ (Rev. 69)
by schnetter＠cct.lsu.edu 28 May '12

28 May '12

User: eschnett Date: 2012/05/28 11:27 AM Modified: /trunk/ param.ccl Log: Make timelevels parameters steerable upon recovery File Changes: Directory: /trunk/ ================== File [modified]: param.ccl Delta lines: +3 -3 =================================================================== --- trunk/param.ccl 2012-05-25 18:19:18 UTC (rev 68) +++ trunk/param.ccl 2012-05-28 16:27:12 UTC (rev 69) @@ -91,17 +91,17 @@ "none" :: "no prolongation (use this if you do not have enough time levels active)" } "Lagrange" -INT lapse_timelevels "Number of time levels for the lapse" +INT lapse_timelevels "Number of time levels for the lapse" STEERABLE=recover { 0:3 :: "" } 1 -INT shift_timelevels "Number of time levels for the shift" +INT shift_timelevels "Number of time levels for the shift" STEERABLE=recover { 0:3 :: "" } 1 -INT metric_timelevels "Number of time levels for the metric and extrinsic curvature" +INT metric_timelevels "Number of time levels for the metric and extrinsic curvature" STEERABLE=recover { 0:3 :: "" } 1

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[svn:einsteintoolkit] Exact/trunk/test/ (Rev. 275)
by roland.haas＠physics.gatech.edu 28 May '12

28 May '12

User: rhaas Date: 2012/05/28 11:23 AM Added: /trunk/test/ test.ccl Log: increase relative tolerance for KS-tilted test to 1e-12 this corresponds to the default abstol of 1e-12 for values of order unity File Changes: Directory: /trunk/test/ ======================= File [added]: test.ccl Delta lines: +5 -0 =================================================================== --- trunk/test/test.ccl (rev 0) +++ trunk/test/test.ccl 2012-05-28 16:23:30 UTC (rev 275) @@ -0,0 +1,5 @@ +TEST KS-tilted +{ + RELTOL 1e-12 +} +

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Commits May 2012