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From: Aurelien Bouteiller (bouteill_at_[hidden])
Date: 2007-09-08 14:34:35

Hi Sajjad,

First it will depend wether you are writing a new component in an
existing framework (let say you are writing a new BTL for a new type
of interconnect) or a totally new framework (you want to have a
family of component that can manage a totally new functionality in
Open MPI). In each Framework there is a "base" which take care of the
component selection process. If you are just adding a component, you
will just need to provide a mca_mycomponent_init(bool
enable_progress_threads, bool enable_mpi_threads) as described in the
mca_component_t structure. The mca_framework_base_select will then
take care of everything for you. If you want to add a new framework
you'll have to create a selection function by yourself (all along
with a full bunch of other functions to populate the base of the
framework). I'll give you more details on this if it is relevant for
you, just ask.


Le 7 sept. 07 à 17:21, Sajjad Tabib a écrit :

> Hi,
> I am a complete newbie to Open MPI internals and just began
> browsing the code and reading up on slides and papers. From what I
> have read, I learned that I have to create a new component. What I
> do not know is how to make MPI aware of it or should I say make MPI
> open and select my component. I found a set of slides that briefly
> went over adding components. For example, it briefly described that
> I must add PARAM_INIT_FILE and PARAM_CONFIG_FILES options in
> configure.params, but I'm not sure what these mean. Does anybody
> know of any tutorials/documents that could help me with this?
> Any help is greatly appreciated.
> S Tabib
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