Re:Chinese Chipmaker Unveils 64-Core ARM Processor
by mafribe on Sunday August 28, 2016 @06:55AM
(#12376058)
Do you know what kinds of optimisations Erlang/BEAM does for clusters of independent nodes? Does the user have to tell Erlang/BEAM which thread lives on what node, or does the scheduler handle this automatically?
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Re:Chinese Chipmaker Unveils 64-Core ARM Processor
by yellowapple on Friday September 02, 2016 @05:01PM
(#12416260)
Internode process spawning happens explicitly, last I checked. It's pretty easy once both nodes are communicating, but not automatic.
In contrast, BEAM's SMP support is automatic AFAICT; the scheduler will happily distribute processes across as many cores as it can access (1 BEAM thread per hardware thread by default, so a quad-core CPU with one thread per core and a dual-core CPU with two threads per core will both be loaded with four BEAM threads unless BEAM is configured to do something else).