Trac July 2014

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127 discussions

[Einstein Toolkit] #1631: The dgfe branch for McLachlan generates NaNs
by Einstein Toolkit 17 Apr '16

17 Apr '16

#1631: The dgfe branch for McLachlan generates NaNs -----------------------------------------------------------+---------------- Reporter: Jonah Miller <jonah.maxwell.miller@…> | Owner: eschnett Type: defect | Status: new Priority: optional | Milestone: ET_2014_11 Component: EinsteinToolkit thorn | Version: development version Keywords: dgfe,mclachlan,gamma driver | -----------------------------------------------------------+---------------- When one uses the gamma driver formulation in the dgfe branch of McLachlan and sets the shiftGammaCoefficient to zero, the runtime output has NaNs because the code divides by zero. A bit of flow control fixes this. Attached is a patch for the branch. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1631> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #1646: McLachlan does not give a reference for the gauge evolution equations
by Einstein Toolkit 11 Apr '16

11 Apr '16

#1646: McLachlan does not give a reference for the gauge evolution equations -----------------------------------+---------------------------------------- Reporter: rhaas | Owner: Type: defect | Status: new Priority: minor | Milestone: Component: EinsteinToolkit thorn | Version: development version Keywords: McLachlan | -----------------------------------+---------------------------------------- McLachlan_BSSN.m does not seem to contain any information (eg in evolCalc) that would tell me from which paper the different expressions for the shift and lapse evolution expression are taken from (which may be useful to understand what the different coefficients mean, since parsing the multiple factors of the type XXXFactor * AAA + (1-XXXFactor) * BBB to get either AAA or BBB is confusing). -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1646> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #1419: Cactus should produce no errors in Valgrind
by Einstein Toolkit 12 Nov '15

12 Nov '15

#1419: Cactus should produce no errors in Valgrind -------------------------+-------------------------------------------------- Reporter: sbrandt | Owner: Type: enhancement | Status: new Priority: minor | Milestone: Cactus_4.3.0 Component: Cactus | Version: development version Keywords: | -------------------------+-------------------------------------------------- Valgrind is a useful tool for identifying a large number of coding problems. Currently, running Cactus under valgrind produces a large number of spurious errors due to the implementation of the string library. Attempts to use the valgrind suppression mechanism to eliminate them have proven difficult. However, these errors all go away if we simply replace all calls to strdup() with calls to util_Strdup(), a function which is already part of Cactus. Making this replacement shouldn't have any negative impacts, and it would make valgrind more usable. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1419> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #706: External Library Support
by Einstein Toolkit 12 Nov '15

12 Nov '15

#706: External Library Support -------------------------+-------------------------------------------------- Reporter: sbrandt | Owner: Type: enhancement | Status: new Priority: minor | Milestone: Cactus_4.1.0 Component: Cactus | Version: Keywords: | -------------------------+-------------------------------------------------- We should remove support for all external library support that's wired into the flesh (except maybe MPI) in favor of the newer more generic mechanism. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/706> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #641: Parameter files and thornlists could be tested as part of the release process
by Einstein Toolkit 11 Nov '15

11 Nov '15

#641: Parameter files and thornlists could be tested as part of the release process -------------------------+-------------------------------------------------- Reporter: hinder | Owner: Type: enhancement | Status: new Priority: minor | Milestone: ET_2012_05 Component: Other | Version: Keywords: | -------------------------+-------------------------------------------------- There are a number of parameter files and thornlists included as examples with thorns in the ET, and in Cactus. Would it be feasible to have these tested as part of the release process? For example, they should run without crashing or missing thorns, should not trigger NaNs etc, and we should minimise any warnings that are emitted. It would be nice to automate this, though it probably requires a cluster, so would be distinct from the usual test suite procedure, due to requiring more memory than tests. Something to think about for the next release. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/641> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #697: Repository and thorn names cannot be different
by Einstein Toolkit 10 Nov '15

10 Nov '15

#697: Repository and thorn names cannot be different ---------------------------+------------------------------------------------ Reporter: eschnett | Owner: eric9 Type: defect | Status: new Priority: critical | Milestone: Component: GetComponents | Version: Keywords: | ---------------------------+------------------------------------------------ I am accessing some thorns stored in git repositories at bitbucket.org, which insists that all repository names are all lower case. I don't know how to specify this in GetComponents. When I say !TARGET = $ARR !TYPE = git !URL = git@bitbucket.org:user/thorn.git !AUTH_URL = git@bitbucket.org:user/thorn.git !CHECKOUT = Arrangement/Thorn then GetComponents does not create a symbolic link from Thorn to ../../repos/thorn, but to ../../repos/thorn/Arrangement/Thorn instead. How do I avoid this? -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/697> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #241: Thorns should be able to specify implementation versions, and other thorns should be able to depend on those
by Einstein Toolkit 26 Oct '15

26 Oct '15

#241: Thorns should be able to specify implementation versions, and other thorns should be able to depend on those -------------------------+-------------------------------------------------- Reporter: knarf | Owner: Type: enhancement | Status: new Priority: minor | Milestone: Component: Cactus | Version: Keywords: | -------------------------+-------------------------------------------------- Cactus thorns implement 'implementations', and other thorns can then depend on particular implementations being present. However, quite often those are updated, and incompatibilities occur. Usually this is resolved by the developer in both thorns - the implementing and the using thorn. However, a user might just update one of them, and Cactus would not catch this error. Thus, I suggest to think about, and implement how to: - specify implementation versions e.g. IMPLEMENTS: Cactus (4.0) The version string within () would have be sorted in an intelligent way to allow comparisons [1]. - specify dependencies on particular versions of other implementations In particular I suggest the following dependencies: depends, and conflicts, both with comparisons < <= == >= > != e.g. DEPENDS: Cactus (>= 4.0) DEPENDS: BadImplementation (!=3.14) <-- this introduces a dependency CONFLICTS: BadImplementation (==3.14) <-- this doesn't introduce a depencency [1] First the initial part of each string consisting entirely of non-digit characters is determined. These two parts (one of which may be empty) are compared lexically. If a difference is found it is returned. The lexical comparison is a comparison of ASCII values modified so that all the letters sort earlier than all the non-letters. Then the initial part of the remainder of each string which consists entirely of digit characters is determined. The numerical values of these two parts are compared, and any difference found is returned as the result of the comparison. For these purposes an empty string (which can only occur at the end of one or both version strings being compared) counts as zero. These two steps (comparing and removing initial non-digit strings and initial digit strings) are repeated until a difference is found or both strings are exhausted. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/241> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #1033: support a combined "map" file in CarpetIOHDF5
by Einstein Toolkit 07 Oct '15

07 Oct '15

#1033: support a combined "map" file in CarpetIOHDF5 --------------------------+------------------------------------------------- Reporter: rhaas | Owner: eschnett Type: enhancement | Status: new Priority: minor | Milestone: Component: Carpet | Version: Keywords: CarpetIOHDF5 | --------------------------+------------------------------------------------- recovering on different number of processes than was used to write a checkpoint is painfully slow. Part of the reason seems to be that each process essentially has to read all files to find out where each piece of data it requires is located. The attached patch (not to be included in the main code due to bad file formats and coding) enables CarpetIOHDF5 to read all the information stored in the union of index files to from a single file. This means (together with the other patches proposed today) that CarpetIOHDF5 only ever opens those HDF5 files that are required to restore the simulation on a given process. It significantly (factor > 4 where I don't quite know how fast since the unpatched version ran out of walltime) speeds up recovery with many more processors than wrote the files. It also adds an optimization for CCTK_VarIndex calls inside CarpetIOHDF5 (which happens for every dataset in the file). This is intended only as a proof of what might speed up recovery. A proper implementation would need a more sensible file format. Two option seem possible: 1) extend the index file format by a "filename" or "filenum" attribute to each dataset and use a concatenation of all index files as the map file 2) define a custom hdf5 data type corresponding to the information in a single patch_t, which would have mostly integer field plus two variable length / enumerated ASCII fields (for the patch name, variable name) -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1033> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #1045: URL field should be optional
by Einstein Toolkit 01 Sep '15

01 Sep '15

#1045: URL field should be optional ---------------------------+------------------------------------------------ Reporter: hinder | Owner: eric9 Type: defect | Status: new Priority: minor | Milestone: Component: GetComponents | Version: Keywords: | ---------------------------+------------------------------------------------ In a CRL file, it should be possible to have only an AUTH_URL field and omit the URL field, since it might be that there is no unauthenticated way to access the repository (e.g. for private repositories). At the moment, when I omit the URL field for a Git repository, the error message is: {{{ Use of uninitialized value $git_repo in substitution (s///) at ./GetComponents line 589. Use of uninitialized value $git_repo in substitution (s///) at ./GetComponents line 590. Use of uninitialized value $rec{"GIT_REPO"} in substitution (s///) at ./GetComponents line 593. Use of uninitialized value $rec{"GIT_REPO"} in substitution (s///) at ./GetComponents line 594. ... }}} -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1045> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #334: unsuccessful qsub not recognized / submit succeeds for finished simulation
by Einstein Toolkit 18 Aug '15

18 Aug '15

#334: unsuccessful qsub not recognized / submit succeeds for finished simulation ------------------------+--------------------------------------------------- Reporter: knarf | Owner: mthomas Type: defect | Status: new Priority: minor | Milestone: Component: SimFactory | Version: Keywords: | ------------------------+--------------------------------------------------- python version: I submitted a simulation 'sim submit' but the corresponding qsub failed due to wrong numbers of procs/node (philip cluster). I changed the number given on the command line and did a 'sim submit' again, this time successful. Several things happend which I think could be done better: - the unsuccessful qsub was not detected during the new submit - it attempted a restart and didn't simply clean the unsuccessful submit - when trying the restart, it went ahead and queued the job, but this later failed when run with "cannot rerun a restart that has been finished". This could have been caught earlier - without the wait time in the queue. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/334> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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