 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, Bug Report, Multiple issues with mhist
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I think I can offer some insight into your problems:
1) your mhist crash is due to the ODB timeout, it is probably set to 30 seconds in ODB /programs/mhist. you will
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11 Sep 2024, Konstantin Olchanski, Suggestion, Improve Event Documentation
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> I am writing a Rust based midas file reader however it was kind of hard to understand the full midas file
> structure from the documentation.
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11 Sep 2024, Konstantin Olchanski, Info, Help parsing scdms_v1 data?
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Look at the C++ implementation of the MIDAS data file reader, the code is very
simple to follow.
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11 Sep 2024, Konstantin Olchanski, Info, mana.cxx
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> Ok, no relevant complains so far, so I removed mana and rmana from the CMake build
> process, but left the file mana.cxx still in the repository for educational
> purposes ;-)
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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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 12 Sep 2024, Konstantin Olchanski, Bug Fix, bitbucket builds repaired
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bitbucket builds work again, also added ubuntu-24 and almalinux-9.
two problems fixed:
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13 Sep 2024, Konstantin Olchanski, Bug Fix, rootana bitbucket build fixed
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rootana bitbucket build is fixed, only a few minor build problems. I am using the
root official docker image (which turned out to not work right out of the box
becuase of missing libvdt-dev package). K.O. |
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13 Sep 2024, Konstantin Olchanski, Bug Report, mfe.cxx with RO_STOPPED and EQ_POLLED
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> > I noticed that a check was added to mfe.cxx in 1961af0d6:
This is the reason I recommend against using mfe.c based frontends. There was never any
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13 Sep 2024, Konstantin Olchanski, Bug Fix, mstrcpy, was: strlcpy and strlcat added to glibc 2.38
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for the record, as ultimate solution, strlcpy() and strlcat() were wholesale
replaced by mstrlcpy() and mstrlcat(). this should fix "missing strlcpy()"
problem for good and make midas more consistent across all platforms (including
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13 Sep 2024, Konstantin Olchanski, Suggestion, manalyzer thread safety and custom http IP binding
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> - Enable ROOT's thread safety when running in multithreaded mode
> This helps avoid users having to write their call to a global thread lock when calling ->Fill() on ROOT histograms and Trees
> https://bitbucket.org/tmidas/manalyzer/pull-requests/5
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13 Sep 2024, Konstantin Olchanski, Suggestion, Clean up compiler warning in manalyzer
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> This is a super small pull request, simple replace deprecated sprintf with snprintf
> https://bitbucket.org/tmidas/manalyzer/pull-requests/9
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17 Sep 2024, Konstantin Olchanski, Bug Report, Crash using ODB watch
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> {
> odb new_settings("/Equipment/Test FE/Settings");
> new_settings.watch(watch); // <-- here I am getting a segmentation fault
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24 Sep 2024, Konstantin Olchanski, Bug Report, Can we convert the .mid file into .root file
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"Can we convert the .mid file into .root file".
yes, you can, but the operation is under-defined. it's like asking "can I convert these stones into houses". the answer is "yes", but it involves
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24 Sep 2024, Konstantin Olchanski, Suggestion, Clean up compiler warning in manalyzer
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> > I like the look of std::format, looks cleaner than string streams
>
> I fully agree. String streams is a pain if you want to do zero-leading hex output mixed with decimal output. Yes it's easier to read if you don't know |
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07 Oct 2024, Konstantin Olchanski, Bug Report, Difficulty running MIDAS on Rocky 9.4
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> We're trying to install the SuperCDMS version of MIDAS on a Rocky 9.4 Virtual
> Machine and are getting a persistent error when we run mserver.
>
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08 Oct 2024, Konstantin Olchanski, Bug Report, Difficulty running MIDAS on Rocky 9.4
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> I've uploaded the current core dump at: https://gitlab.com/det-lab/coredumps#.
I cannot read the core dump without the corresponding executable (and likely all it's shared libraries).
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08 Oct 2024, Konstantin Olchanski, Bug Report, Difficulty running MIDAS on Rocky 9.4
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I read these error messages. There is no ODB corruption. ODB semaphore is locked and all midas programs will fail, they will timeout trying to get the lock,
report the timeout, then it looks like a bug was introduced where instead of hard exit or abort() they attempt a clean shutdown which crashes from a recursive
call in db_lock_database(). Amy's
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