 04 Jul 2024, Nick Hastings, Forum, mfe.cxx with RO_STOPPED and EQ_POLLED
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I just discovered https://bitbucket.org/tmidas/midas/issues/338/mfec-ro_stopped-is-now-forbidden
> Dear Midas experts,
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06 Aug 2024, Stefan Ritt, Forum, mfe.cxx with RO_STOPPED and EQ_POLLED
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> I noticed that a check was added to mfe.cxx in 1961af0d6:
>
> + /* check for consistent common settings */
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 15 Aug 2024, Scott Oser, Forum, "Safe" abort of sequencer scripts
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We often use the MIDAS sequencer to temporarily control detector settings, such as:
* <change some setting>
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19 Aug 2024, Stefan Ritt, Forum, "Safe" abort of sequencer scripts
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This request came more than once in the past. One thing I could implement is a "atexit" function similarly to the C funciton atexit().
Then we would have a function in the script which gets called whenever one does "stop immediately". This function can then restore
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22 Aug 2024, Scott Oser, Forum, "Safe" abort of sequencer scripts
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> This request came more than once in the past. One thing I could implement is a "atexit" function similarly to the C funciton atexit().
>
> Then we would have a function in the script which gets called whenever one does "stop immediately". This function can then restore
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05 Sep 2024, Jack Carlton, Forum, Python frontend rate limitations? 
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I'm trying to get a sense of the rate limitations of a python frontend. I
understand this will vary from system to system.
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05 Sep 2024, Ben Smith, Forum, Python frontend rate limitations?
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> What limits the rate that poll_func is called in a python frontend?
First the general advice: if you reduce the "period" of your equipment, then your function will get called more frequently. You can set it to 0 and we'll |
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05 Sep 2024, Jack Carlton, Forum, Python frontend rate limitations?
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Thank you, this was very helpful.
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05 Sep 2024, Stefan Ritt, Forum, Python frontend rate limitations?
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> First the general advice: if you reduce the "period" of your equipment, then your function will get called more frequently.
> You can set it to 0 and we'll call it as often as possible. You can set this in the ODB at "/Equipment/Python Data Simulator/Common/Period"
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06 Sep 2024, Jack Carlton, Forum, Python frontend rate limitations?
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Thanks for the responses, they were very helpful.
>First the general advice: if you reduce the "period" of your equipment, then your function will get called more frequently. You can set it to 0 and we'll |
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11 Sep 2024, Konstantin Olchanski, Forum, Python frontend rate limitations?
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> I'm trying to get a sense of the rate limitations of a python frontend.
1) python is single-threaded, for ultimate performance, a MIDAS frontend (or any DAQ
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11 Sep 2024, Konstantin Olchanski, Forum, Python frontend rate limitations?
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>
> poll(INT count) {
> for (i=0 ; i<count ; i++)
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11 Sep 2024, Konstantin Olchanski, Forum, Python frontend rate limitations?
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> > I'm trying to get a sense of the rate limitations of a python frontend.
forgot one more:
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11 Sep 2024, Konstantin Olchanski, Forum, "Safe" abort of sequencer scripts
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> We often use the MIDAS sequencer to temporarily control detector settings, such as:
>
> * <change some setting>
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27 Sep 2024, Ben Smith, Forum, Python frontend rate limitations?
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> in your case the limitation is likely that you're sending 1.25MB per event and we have a lot of data marshalling to do between the python and C++ layer.
>
> I'll add it to my to-do list to investigate improving the performance of medium-to-large events in the python code.
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05 Nov 2024, Jack Carlton, Forum, How to properly write a client listens for events on a given buffer?
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If there's some template for writing a client to access event data, that would be
very useful (and you can probably just ignore the context I gave below in that
case).
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05 Nov 2024, Maia Henriksson-Ward, Forum, How to properly write a client listens for events on a given buffer?
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> If there's some template for writing a client to access event data, that would be
> very useful (and you can probably just ignore the context I gave below in that
> case).
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02 Dec 2024, Stefan Ritt, Forum, "Safe" abort of sequencer scripts
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The atexit() function has been implemented in the current develop branch of midas, see
https://daq00.triumf.ca/MidasWiki/index.php/Sequencer#ATEXIT_subroutine
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29 Dec 2024, Pavel Murat, Forum, time ordering of run transition calls to TMFeEquipment things
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Dear MIDAS experts,
I have a question about "tmfe approach" to implementing MIDAS frontends. If I read the code correctly,
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01 Jan 2025, Konstantin Olchanski, Forum, time ordering of run transition calls to TMFeEquipment things
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> I have a question about "tmfe approach" to implementing MIDAS frontends. If I read the code correctly,
> within this approach it is the TMFeEquipment things, not the TMFrontend's themselves,
> which handle the run transitions - the TMFrontend class
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