[erlang-questions] Erlang for a measurement system?

Ulf Wiger (TN/EAB) ulf.wiger@REDACTED
Wed Nov 19 16:46:54 CET 2008

How precise do the measurements need to be?
You write "resolution of ms". If by that you mean +-1 ms,
then you're problably going to have to control the machine
pretty tightly, make sure that there are no cpu-bound tasks
that can prolong context switches, etc. If it's ok to be off
by some milliseconds now and again, then it will probably
work. You should use a multi-core machine and make sure that
the load stays fairly low.

 From a programming perspective, controlling different devices
was one of Erlang's core requirements from the start. It's
one of the things it does really, really well.

Ulf W

Pablo Platt skrev:
> Hi,
> We are considering erlang for building a controlled measurement system 
> in our laboratory.
> The erlang software will control several devices using VISA (GPIB, 
> RS232, USB).
> Are there any advantages for using erlang for this implementation?
> Will erlang be able to control two different devices in parallel in a 
> reliable way because of its 'share nothing' principle?
> Is synchronizing several process (resolution of ms) an advantage of 
> erlang or is it mainly an hardware issue?
> Is synchronizing several computers(resolution of ms) an advantage of erlang?
> Are there know implementations of erlang for controlling measurement 
> devices (VISA)?
> Is there an advantage of using erlang compared to python 
> (http://pypi.python.org/pypi/PyVISA/1.3).
> Appreciate your feedback,
> Pablo
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