Hello all -
I'd like to apply pmap to a function F I've written, which takes several
arguments, only one of which will be varying across pmap.
For example:
function F(a, b, c)
# a silly example
a + b + c
end
I'd like to pmap F over a1, a2, and a3, while keeping b and c the same for
the three iterations.
(I tried this stackexchange
answer: http://stackoverflow.com/questions/24637064/julia-using-pmap-correctly
and did not have any luck - { } are deprecated as containers (I think)
and the a_i's may be of different sizes so [a1 a2 a3] might not be a
reasonable object to try to form. I tried both ideas in that answer:
writing the arguments as [a1 b c] [a2 b c]... etc or [a1 a2 a3] [b b b] ...
etc. Neither one worked.)
I have also tried defining
function Fprime(a; b0 = b, c0 = c)
F(a, b0, c0) # treating b and c above as fixed
end
And then doing pmap( Fprime, [a1 a2 a3]), but
(i) this does not solve my problem when the a_i's are different sizes and
can't be put into one array
(ii) it gave me an error even when I tried it on the easy case [a1 a1],
where I think pmap should just (eventually) call F(a1, b, c) on two
workers. The error I got was a CapturedException MethodError, even though
Fprime( a1) works just fine.
If you can point me to what I am doing wrong, I would be very grateful.
Thanks!
ABB
