[erlang-questions] Erlang multicore on AMD: 24 cores (48 pseudocores)

Jon Watte <>
Fri Apr 20 04:51:46 CEST 2012

What is your bottleneck?
Amount of DRAM?
Available bandwidth to DRAM?
L1, L2 or L3 cache?
Floating point performance?
Integer performance?
Hard-to-predict branchy logic code?

Depending on what the problem is you're trying to solve, different
architectures and ways of slicing the work will perform differently.


Jon Watte

"I pledge allegiance to the flag of the United States of America, and to
the republic for which it stands, one nation indivisible, with liberty and
justice for all."
~ Adopted by U.S. Congress, June 22, 1942

On Wed, Apr 18, 2012 at 2:16 AM, Max Lapshin <> wrote:

> Hi.
> I have a computing task, which can be parallelized into 50 independent
> tasks.
> I want to buy an 24 core Opteron-based computer for this and I want to
> understand, if erlang will be able to use all these
> cores effectively. This task is launched as 50 independent processes
> that just work with their private set of data.
> Maybe it is better to buy 6 computers with 4-core intel core i5, or
> better to test?
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