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Subject: [OMPI devel] Shared Memory RDMA and eager messages
From: Torje Henriksen (torjeh_at_[hidden])
Date: 2008-05-15 05:55:41


Hi everyone,

I have some quick questions.

1. In the BTL SM component (both in "ompi_info --param btl sm" and the
source), there is mention of RDMA. Is RDMA used in ths component? Is
any special hardware needed for using it?

2. As for eager vs non-eager messages. Is the only difference between
these the amount of memory allocated for a fragment? Is there any
rendevouz protocol used for large messages or anything like that?

The module based architecture is great, but sometimes I find it hard
to figure out what is happening :)

Best regards and thanks,

Torje