On Tue, 13 Jan 2009, Tim Mattox wrote:
> The cm PML does not use BTLs..., only MTLs, so
> ... the BTL selection is ignored.
OK, thanks for clarifying this bit, but...
>> The README for 1.3b2 specifies that CM is now chosen if possible; in my
>> trials, when I specify CM+BTL, it doesn't complain and works well.
>> However either the default (no options) or OB1+BTL leads to the jumps
>> mentioned above, which makes me believe that OB1+BTL is still chosen as
>> default, contrary to what the README specifies.
... this bit is still unclear to me. Should OB1+BTL or CM+MTL be the
default ? I have just tried using "mpi_show_mca_params" for both
v1.3b2 and v1.3rc3 and this tells me that:
pml= (default value)
pml_cm_priority=30 (default value)
pml_ob1_priority=20 (default value)
which, from what I know, should lead to CM being chosen as the
default. Still for v1.3b2 OB1 seemed to be chosen; for v1.3rc3 I can't
distinguish anymore from timings as they behave very similarly.
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