 14 Oct 2014, Konstantin Olchanski, Bug Report, Problem in mfe multithread equipments
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In the ALPHA experiment at CERN I found a problem in mfe.c handling of multithreaded equipments. This problem was in
some forms introduced around May 2013 and around Aug 2013 (commit
https://bitbucket.org/tmidas/midas/src/45984c35b4f7/src/mfe.c) (I hope I got it right).
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 14 Oct 2014, Konstantin Olchanski, Bug Report, Problem in mfe multithread equipments
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For my reference:
good version: https://bitbucket.org/tmidas/midas/src/6899b96a4f8177d4af92035cd84aadf5a7cbc875/src/mfe.c?at=develop
first breakage: https://bitbucket.org/tmidas/midas/src/c60259d9a244bdcd296a8c5c6ab0b91de27f9905/src/mfe.c?at=develop
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15 Oct 2014, Stefan Ritt, Bug Report, Problem in mfe multithread equipments
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You are absolutely correct, the code is certainly wrong. It looks to me like the
while (rbh)
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15 Oct 2014, Stefan Ritt, Bug Report, Problem in mfe multithread equipments
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Please disregard my previous posting, you don't need the while loop, since it's already in the scheduler (around lines 2160 under /*---- send interrupt
events ----*/).
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16 Oct 2014, Stefan Ritt, Bug Report, Problem in mfe multithread equipments
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> while (1)
> wait 10 ms for an event
> process event, loop back
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14 Oct 2014, Konstantin Olchanski, Bug Report, Problem with EQ_USER
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If you use EQ_USER in mfe.c and have multiple threads writing into the ring buffer, you will have a big
problem - the thread locking in the ring buffer code only works for a single writer thread and a single
reader thread.
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15 Oct 2014, Stefan Ritt, Bug Report, Problem with EQ_USER
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Sure, each thread needs its own ring buffer for writing.
So I see that we need back the multiple-ring-buffer-readout-scheme even before MEG will start. So what you need is something like
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16 Oct 2014, Stefan Ritt, Bug Report, Problem with EQ_USER
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I restructured the front-end code to enable multiple readout threads for EQ_USER equipment. Last summer I was definitively interrupted during
that work and left it in an half finished state, sorry for that.
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16 Jul 2014, Clemens Sauerzopf, Forum, CAEN V1742 midas driver 
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Hello all,
as discussed in the thread about Interrupt triggered readout
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08 Sep 2014, Clemens Sauerzopf, Forum, CAEN V1742 midas driver
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Hello all,
As an addition to the driver functions I uploaded in this thread I would also have a
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11 Jul 2014, Konstantin Olchanski, Info, MIDAS high speed test
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We have tested operation of MIDAS using a 10GigE network connection. Using a dummy frontend
generating fake data, we can record MIDAS data to disk at at least 700 Mbytes/sec as reported by
the MIDAS status page.
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06 Aug 2014, Konstantin Olchanski, Info, MIDAS high speed test
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> We have tested operation of MIDAS using a 10GigE network connection. Using a dummy frontend
> generating fake data, we can record MIDAS data to disk at at least 700 Mbytes/sec as reported by
> the MIDAS status page.
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10 Jul 2014, Clemens Sauerzopf, Forum, Adding Interrupt handling to SIS3100 driver
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Hello,
we are using the Struck SIS 3100 VME interface for our experiment, but the midas
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11 Jul 2014, Pierre-Andre Amaudruz, Forum, Adding Interrupt handling to SIS3100 driver
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> Hello,
>
> we are using the Struck SIS 3100 VME interface for our experiment, but the midas
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14 Jul 2014, Clemens Sauerzopf, Forum, Adding Interrupt handling to SIS3100 driver
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Hi Pierre-Andre,
thanks for your comments. If I understand you correctly you are advising to separate the
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15 Jul 2014, Pierre-Andre Amaudruz, Forum, Adding Interrupt handling to SIS3100 driver
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Hello Clemens,
The hardware readout is triggered by the interrupt within this thread. The main thread poll on
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06 Aug 2014, Clemens Sauerzopf, Forum, Adding Interrupt handling to SIS3100 driver
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Hello Pierre-Andre,
thank you for your help with the interrupt handling. To close this case I'll
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07 Jul 2014, Ryu Sawada, Bug Report, mhist does not show history when -s option is used
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When I use -s option of mhist, it does not show history, for example.
[code]
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06 Jun 2014, Alexey Kalinin, Forum, problem with writing data on disk
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Hello,
Our experiment based on MIDAS 2.x DAQ.
I'm using several identical frontend-%d with only lam source & event id changed,
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16 Jun 2014, Alexey Kalinin, Forum, problem with writing data on disk
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Hello, once again.
What I found is when I tryed to stop the run, mlogger still working and writing some
data, that i'm sure is not right, because frontend's are in stopped state
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18 Jun 2014, Alexey Kalinin, Forum, problem with writing data on disk
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Hello,
I'm in deppression.
I removed Everything from computer with mserver and reinstall system and midas.
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27 May 2014, Scott Oser, Suggestion, Saving ODB values in a sequencer script
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I have a possibly simple feature request for the MIDAS sequencer. It would be
helpful to be able to save an ODB key's value to a variable, for later use, and
would be the analogue of the ODBSET command. I had in mind an application where
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12 Jun 2014, Stefan Ritt, Suggestion, Saving ODB values in a sequencer script
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> I have a possibly simple feature request for the MIDAS sequencer. It would be
> helpful to be able to save an ODB key's value to a variable, for later use, and
> would be the analogue of the ODBSET command. I had in mind an application where
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12 Jun 2014, Scott Oser, Suggestion, Saving ODB values in a sequencer script
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Thanks, this seems very helpful, and we'll give it a try.
> > I have a possibly simple feature request for the MIDAS sequencer. It would be
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26 May 2014, Dan Melconian, Suggestion, "Edit-on-end" would be nice
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We use the "Edit-on-start" and it's great. But sometimes, something breaks
during the run, or you didn't realize you forgot to plug in a cable, or
whatever. It'd be nice to have an "Edit-on-end" where you could prompt the user
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26 May 2014, Stefan Ritt, Suggestion, "Edit-on-end" would be nice
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We have similar demands, and we solve it in the following:
We use a run database. In the simplest case, this can be a text file which gets written at the end of the file. The
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28 Apr 2014, Tom Stuttard, Forum, Words written as zero in Midas bank
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Hi,
I am having some trouble with the data in my Midas bank. I am filling a midas
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15 Apr 2014, Wes Gohn, Forum, C++11 error
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I am having some trouble creating a frontend that interacts with some libraries that use C++11.
The flag I added to my MIDAS Makefile to get the C++11 part of the code to work is -std=c++0x. This
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16 Apr 2014, Stefan Ritt, Forum, C++11 error
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> I am having some trouble creating a frontend that interacts with some libraries that use C++11.
>
> The flag I added to my MIDAS Makefile to get the C++11 part of the code to work is -std=c++0x. This
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16 Apr 2014, Wes Gohn, Forum, C++11 error
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> > I am having some trouble creating a frontend that interacts with some libraries that use C++11.
> >
> > The flag I added to my MIDAS Makefile to get the C++11 part of the code to work is -std=c++0x. This
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17 Apr 2014, Stefan Ritt, Forum, C++11 error
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> Thanks for the suggestion. It looks like it is instead the TRIGGER_ALL that is causing the problem. TRIGGER_ALL is defined as -1 in midas.h. If I replace
TRIGGER_ALL with 0 in the
> frontend, it compiles, but if I use -1, I get the same error. I do not think that I want my trigger mask set to 0. Do you have a suggestion of how to |
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17 Mar 2014, Zhi Li, Forum, [need help] simple example frontend for CAEN VX1721
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Dear guys,
I’m Zhi Li from China, and I’m now working on my graduation project, which now
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17 Mar 2014, Pierre-Andre Amaudruz, Forum, [need help] simple example frontend for CAEN VX1721
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Hi Li,
You mention that you've got the wavedump working. It suggests that you have a A3818
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17 Mar 2014, Zhi Li, Forum, [need help] simple example frontend for CAEN VX1721
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Hi Pierre,
Thanks for your instructions. Before I run the wavedump software, I need to load a driver file for A2818, thus I think I've got this interface of A2818.
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12 Mar 2014, Andreas Suter, Info, Windows support droped?
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In the old SVN midas world it was typically such that the Windows dll's and
exe's were ready to be used when checking out. I am not so sure this is the case
for the current version, since when I use the packed dll's and exe's (e.g.
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14 Mar 2014, Konstantin Olchanski, Info, Windows support droped?
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> In the old SVN midas world it was typically such that the Windows dll's and
> exe's were ready to be used when checking out.
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17 Mar 2014, Stefan Ritt, Info, Windows support droped?
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> The Windows executables are no longer included in the midas git repository. Old versions are still available in
> the git repository - they got pulled in during conversion from svn.
>
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11 Mar 2014, Andreas Suter, Forum, mlogger problem
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I stumbled over a problem which I cannot pin point and would appreciate suggestions.
I set up an experiment, and all of a sudden I noticed the following behaviour.
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11 Mar 2014, Stefan Ritt, Forum, mlogger problem
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[quote="Andreas Suter"]I stumbled over a problem which I cannot pin point and would appreciate suggestions.
I set up an experiment, and all of a sudden I noticed the following behaviour.
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11 Mar 2014, Andreas Suter, Forum, mlogger problem
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[quote="Stefan Ritt"][quote="Andreas Suter"]I stumbled over a problem which I cannot pin point and would appreciate suggestions.
I set up an experiment, and all of a sudden I noticed the following behaviour.
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14 Mar 2014, Konstantin Olchanski, Forum, mlogger problem
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> I stumbled over a problem which I cannot pin point and would appreciate suggestions.
>
> [nemu@lem00 2014]$ odbedit -e nemu
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14 Mar 2014, Konstantin Olchanski, Info, midas wiki updated to mediawiki 1.22.4
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The midas wiki at https://midas.triumf.ca was updated to mediawiki 1.22.4 - the latest production version.
If you see any problems, please report them to this elog. K.O. |
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27 Feb 2014, Andreas Suter, Suggestion, runlog is "ugly"
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I have a couple of questions and suggestions concerning the "new" CSS style of the mhttpd, especially related to the runlog
[LIST=1]
[*] If I am not mistaken, the mhttpd.css is hard coded (path/name) into the mhttpd. Wouldn't it be beneficial to have ODB entries where to get is from? |
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27 Feb 2014, Konstantin Olchanski, Suggestion, runlog is "ugly"
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> If I am not mistaken, the mhttpd.css is hard coded (path/name) into the mhttpd.
mhttpd.css is served from $MIDASSYS/resources/mhttpd.css. The actual path is reported on the mhttpd
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28 Feb 2014, Andreas Suter, Suggestion, runlog is "ugly"
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Understand me right, I mostly like the new style, except the runlog as reported.
Attached you will find the diff's you were asking for. But as pointed out, I
haven't worked so far on CSS and hence this should be checked!!
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28 Feb 2014, Stefan Ritt, Suggestion, runlog is "ugly"
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> If I am not mistaken, the mhttpd.css is hard coded (path/name) into the mhttpd.
I agree that this should be removed, Unfortunately I'm away right now, so I will fix it next week. Also will put in
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07 Mar 2014, Stefan Ritt, Suggestion, runlog is "ugly"
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I put mhttpd.css and mhttpd.js into the ODB, so every experiment can change it. I put also Andreas' modifications of the CSS file for the runlog table and
committed the changes.
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11 Feb 2014, Randolf Pohl, Forum, Huge events (>10MB) every second or so
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I'm looking into using MIDAS for an experiment that creates one large event
(20MB or more) every second.
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11 Feb 2014, Stefan Ritt, Forum, Huge events (>10MB) every second or so
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> I'm looking into using MIDAS for an experiment that creates one large event
> (20MB or more) every second.
>
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18 Feb 2014, Konstantin Olchanski, Forum, Huge events (>10MB) every second or so
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> I'm looking into using MIDAS for an experiment that creates one large event
> (20MB or more) every second.
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01 Mar 2014, Randolf Pohl, Forum, Huge events (>10MB) every second or so
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Works, and here is how I did it. The attached example is based on the standard MIDAS
example in "src/midas/examples/experiment".
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01 Mar 2014, Stefan Ritt, Forum, Huge events (>10MB) every second or so
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> Works, and here is how I did it. The attached example is based on the standard MIDAS
> example in "src/midas/examples/experiment".
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23 Feb 2014, Andre Frankenthal, Bug Report, Installation failing on Mac OS X 10.9 -- related to strlcat and strlcpy
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Hi,
I don't know if this actually fits the Bug Report category. I've been trying to install Midas on my Mac OS
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27 Feb 2014, Konstantin Olchanski, Bug Report, Installation failing on Mac OS X 10.9 -- related to strlcat and strlcpy
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>
> I don't know if this actually fits the Bug Report category. I've been trying to install Midas on my Mac OS
> Mavericks and I keep getting errors like "conflicting types for '___builtin____strlcpy_chk' ..." and similarly for
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27 Feb 2014, Andre Frankenthal, Bug Report, Installation failing on Mac OS X 10.9 -- related to strlcat and strlcpy
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> >
> > I don't know if this actually fits the Bug Report category. I've been trying to install Midas on my Mac OS
> > Mavericks and I keep getting errors like "conflicting types for '___builtin____strlcpy_chk' ..." and similarly for
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23 Feb 2014, William Page, Forum, db_check_record() for verifying structure of ODB subtree
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Hi,
I have been trying to use db_check_record() in order to verify that a subtree in the ODB has the correct
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21 Feb 2014, Konstantin Olchanski, Info, Javascript ODBMLs(), modified ODBMCopy() JSON encoding
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I made a few minor modifications to the ODB JSON encoder and implemented a javascript "ls" function to
report full ODB directory information as available from odbedit "ls -l" and the mhttpd odb editor page.
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