 28 May 2020, Marius Koeppel, Suggestion, ODB++ API - documantion updates and odb view after key creation 
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Hello everybody,
I am really appreciate the development of the new odb++ API. So I directly started to rewrite the code for the Mu3e DAQ system.
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 04 Jun 2020, Marius Koeppel, Suggestion, ODB++ API - documantion updates and odb view after key creation
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Hi Stefan,
your test program was only working for me after I changed the following lines inside the odbxx.cpp
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08 Jun 2020, Marius Koeppel, Suggestion, ODB++ API - documantion updates and odb view after key creation
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Hi Stefan,
I agree with your explanation about the size of BOOL and bool.
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16 Jun 2020, Marius Koeppel, Suggestion, ODB++ API - documantion updates and odb view after key creation
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Hi Stefan,
I played around with the code a bit more and I found out that if I do:
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24 Jun 2020, Marius Koeppel, Suggestion, ODB++ API - documantion updates and odb view after key creation
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Hi Stefan,
now everything works well (Tested on: OpenSuse and Arch Linux) :)
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01 Mar 2021, Marius Koeppel, Forum, Using JSROOT.openFile with Midas
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Hi everyone,
I am currently trying to access a ROOT file produced by manalyzer. By calling JSROOT.openFile("MIDAS_DOMAIN/outputRUN.root"). I can download the rootfile |
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04 Mar 2021, Marius Koeppel, Forum, Using JSROOT.openFile with Midas
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Thank you for the answer :)
> At some point I would like to provide a function to "get" TAFlowEvent objects so you can do things
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04 Mar 2021, Marius Koeppel, Forum, Using JSROOT.openFile with Midas
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> would this work for what you are doing?
Yes, having such a function would be perfect for the applications I have a the moment.
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28 May 2021, Marius Koeppel, Info, MidasConfig.cmake usage
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> Does anybody actually use "find_package(midas)", does it actually work for anybody?
What we do is to include midas as a submodule and than we call find_package:
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12 Dec 2021, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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Dear all,
in 13 Feb 2020 to 21 Feb 2020 we had a talk about how I try to create MIDAS events directly on a FPGA and
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26 Jan 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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> Any error messages printed by the frontend? any error message in midas.log? core dumps? crashes?
> I do not understand what you mean by "did not get the data into midas". You create events
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26 Jan 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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> If you are connected locally (no mserver), I want to know the value returned by bm_send_event(). Simplest
> if you edit mfe.c and everywhere it calls bm_send_event() and rpc_send_event(), print the returned value.
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16 Feb 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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I just came back to this and started to use the dummy frontend.
Unfortunately, I have a problem during run cycles:
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07 Mar 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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> This problem has (likely) been fixed in the current version. Please pull develop and try again. Was a recursive call to the event collection routine which
is only triggered if you send events faster than
> the logger can digest, so not many people see it.
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25 Mar 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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I finally found the problem why the readout stops after a run transition.
In my dummy frontend the serial number was not reset to zero at run start.
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27 Apr 2023, Marius Koeppel, Suggestion, Maximum ODB size
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Hi all,
> I agree, I think we can safely bump the limit from 100 Mbytes to 1 Gbyte, maybe 1.5 or
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27 Apr 2023, Marius Koeppel, Suggestion, Maximum ODB size
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> This is change is wrong. As I wrote, ODB is not 64-bit clean and it is not 32-bit clean. We think is is 31-bit clean, so maximum size would be slightly
less than 2 Gbytes.
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28 Apr 2023, Marius Koeppel, Suggestion, Maximum ODB size
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> my vote is to bump the ODB size limit to 1999*1000*1000 (not quite 2GB). but this needs to be tested. especially save and restore from ODB, XML and JSON
files, including how long it takes to save and load a 1.9GB ODB. K.O.
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28 Apr 2023, Marius Koeppel, Suggestion, Maximum ODB size
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> At the run start mlogger writes the ODB to the .mid file. This needs conversion (binary ODB -> XML ASCII) which can take time.
> This does NOT depend on the ODB size, but on the ODB *content*. Every key in the ODB takes time to convert. So if your ODB as 1.5 GB
> but only a few keys, this is still fast. Only if you have 200 million keys int he ODB, then mlogger takes lots of time to convert
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13 Jun 2023, Marius Koeppel, Suggestion, Maximum ODB size
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> BTW, how do I resize the ODB. I remember we discussed this some time ago, and concluded that odbedit needs a resize flag. Has this even been
> done? If not, what is the "official" way to resize the ODB. We had some documentation about that some time ago, but I can't find it anymore.
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