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2013:groups:tools:dlha [2013/06/19 14:34] balazs.csaba |
2013:groups:tools:dlha [2013/06/20 17:24] (current) balazs.csaba |
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==== People involved ==== | ==== People involved ==== | ||
- | (Present at Les Houches) Alexandre, Andreas, Ben, Benj, Björn, Csaba, Fawzi, Geneviève, Nazila, Sasha, Sezen, Pietro, ... | + | * Present at Les Houches: Alexandre, Andreas, Ben, Benj, Björn, Csaba, Fawzi, Geneviève, Nazila, Sasha, Sezen, Pietro |
+ | * Outside of Les Houches: Ben Allanach, David Cerdeno, Peter Skands, & 50+ other people representing various dark matter calculators. | ||
==== Useful links ==== | ==== Useful links ==== | ||
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* Elevate the DLH agreement to a DLH Accord, | * Elevate the DLH agreement to a DLH Accord, | ||
* Start implementing DLHA in dark matter calculators. | * Start implementing DLHA in dark matter calculators. | ||
+ | * Testing DLHA between at least two codes is essential before the final report is completed. | ||
==== 1st discussion ==== | ==== 1st discussion ==== | ||
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* As long as we agree about the blocks defined in the LH11 proceedings, we could try to implement those as a first (and simplest) step to see how things go. | * As long as we agree about the blocks defined in the LH11 proceedings, we could try to implement those as a first (and simplest) step to see how things go. | ||
* We should clarify the role and aim of the functions. Functions were introduced to mediate information that is more complex than just a set of independent numerical values. However as it is there are various roles for functions. They | * We should clarify the role and aim of the functions. Functions were introduced to mediate information that is more complex than just a set of independent numerical values. However as it is there are various roles for functions. They | ||
- | * define complex inputs (such as a dark matter spatial distribution) in an abstract, pre-agreed way: | + | * define function inputs (such as a dark matter spatial distribution) in an abstract, pre-agreed way: |
* ''FUNCTION rho_g type=P args=2 | DLHA rho_g 5 | END_FUNCTION'' | * ''FUNCTION rho_g type=P args=2 | DLHA rho_g 5 | END_FUNCTION'' | ||
* allow the user direct access to existing methods within the codes: | * allow the user direct access to existing methods within the codes: | ||
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* The table header should look like this: | * The table header should look like this: | ||
* TABLE <name> <column> <row> | * TABLE <name> <column> <row> | ||
- | * The name will probably be inherited from the function | + | * The name will probably be inherited from the function. |
* In some cases, when the table can be given in different parametrizations/coordinates, the name will have to include info about about this. | * In some cases, when the table can be given in different parametrizations/coordinates, the name will have to include info about about this. | ||
* We should consider the I/O of "external" tables, namely table I/O from/to a separate (non-DLHA) file. | * We should consider the I/O of "external" tables, namely table I/O from/to a separate (non-DLHA) file. | ||
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==== 3rd discussion ==== | ==== 3rd discussion ==== | ||
* micrOmegas includes an SLHA reader/writer which could be generalized for DLHA. | * micrOmegas includes an SLHA reader/writer which could be generalized for DLHA. | ||
+ | * A stand-alone version is published in [[http://arxiv.org/abs/arXiv:1008.0181|arXiv:1008.0181]]. | ||
+ | * There's a problem with trying to agree upon the I/O of existing functions in existing codes, because this would restrict coding. This problem arises when directly accessing existing methods within existing codes, such as: | ||
+ | * ''FUNCTION <name> type=<type> args=<# of args> | libName=<name of compiled library> | funcName=<name of function in library> | END_FUNCTION'' | ||
+ | * Agreement about the I/O of these directly accessed functions could tie the hands of the author(s) of the original code. | ||
+ | |||
+ | ==== 4th discussion ==== | ||
+ | * A DLHA reader/writer prototype can be created based on SLHA+. | ||
+ | * FUNCTION I/O should happen via arrays. | ||
+ | * We should consider agreeing about the I/O of existing methods in existing calculators. (For abundance, direct or indirect detection calculations, for example.) Then the authors of the codes could distribute a pre-compiled Linux library from which these methods could be called directly based on DLHA. | ||
+ | * We should specify the number of significant figures (16 was suggested) for numerical values. | ||
==== Things to do ==== | ==== Things to do ==== | ||
* The write-up has to be updated to reflect the changes we decide to make at LH13. | * The write-up has to be updated to reflect the changes we decide to make at LH13. | ||
* ... | * ... |