 02 Jun 2021, Konstantin Olchanski, Info, bitbucket build truncated
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I truncated the bitbucket build to only build on ubuntu LTS 20.04.
Somehow all the other build targets - centos-7, centos-8, ubuntu-18 - have
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 04 Jun 2021, Konstantin Olchanski, Info, MidasConfig.cmake usage
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> find_package(Midas)
I am testing find_package(Midas). There is a number of problems:
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04 Jun 2021, Konstantin Olchanski, Info, MidasConfig.cmake usage
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> > find_package(Midas)
>
> So how much time should I spend in fixing find_package(Midas) to make it generally usable?
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15 Jun 2021, Konstantin Olchanski, Info, blog - convert tmfe_rev0 event builder to develop-branch tmfe c++ framework
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Now we are converting the alpha-g event builder from rev0 tmfe (midas-2020-xx) to the new tmfe c++
framework in midas-develop. Earlier, I followed the steps outlined in this blog
to convert this event builder from mfe.c framework to rev0 tmfe.
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15 Jun 2021, Konstantin Olchanski, Info, 1000 Mbytes/sec through midas achieved!
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I am sure everybody else has 10gige and 40gige networks and are sending terabytes of data before breakfast.
Myself, I only have one computer with a 10gige network link and sufficient number of daq boards to fill
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15 Jun 2021, Stefan Ritt, Info, 1000 Mbytes/sec through midas achieved! 
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In MEG II we also kind of achieved this rate. Marco F. will post an entry soon to describe the details. There is only one thing
I want to mention, which is our network switch. Instead of an expensive high-grade switch, we chose a cheap "Chinese" high-grade
switch. We have "rack switches", which are collector switch for each rack receiving up to 10 x 1GBit inputs, and outputting 1 x
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16 Jun 2021, Marco Francesconi, Info, 1000 Mbytes/sec through midas achieved!
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As reported by Stefan, in MEG II we have very similar ethernet throughputs.
In total, we have 34 crates each with 32 DRS4 digitiser chips and a single 1 Gbps readout link through a Xilinx Zynq SoC.
The data arrives in push mode without any external intervention, the only throttling being an optional prescaling on the trigger rate.
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17 Jun 2021, Joseph McKenna, Info, Add support for rtsp camera streams in mlogger (history_image.cxx)
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mlogger (history_image) now supports rtsp cameras, in ALPHA we have
acquisitioned several new network connected cameras. Unfortunately they dont
have a way of just capturing a single frame using libcurl
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18 Jun 2021, Konstantin Olchanski, Info, 1000 Mbytes/sec through midas achieved!
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> In MEG II we also kind of achieved this rate.
>
> Instead of an expensive high-grade switch, we chose a cheap "Chinese" high-grade switch.
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18 Jun 2021, Konstantin Olchanski, Info, 1000 Mbytes/sec through midas achieved!
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> ... MEG II ... 34 crates each with 32 DRS4 digitiser chips and a single 1 Gbps readout link through a Xilinx Zynq SoC.
>
> Zynq ... embedded ethernet MAC does not support jumbo frames (always read the fine prints in the manuals!)
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18 Jun 2021, Konstantin Olchanski, Info, Add support for rtsp camera streams in mlogger (history_image.cxx)
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> mlogger (history_image) now supports rtsp cameras
my goodness, we will drive the video surveillance industry out of business.
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09 Jul 2021, Konstantin Olchanski, Info, cannot push to bitbucket
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the day has arrived when I cannot git push to bitbucket. cloud computing rules!
I have never seen this error before and I do not think we have any hooks installed,
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11 Jul 2021, Konstantin Olchanski, Info, midas cmake update
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I reworked the midas cmake files:
- install via CMAKE_INSTALL_PREFIX should work correctly now:
- installed are bin, lib and include - everything needed to build against the midas library
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13 Jul 2021, Stefan Ritt, Info, MidasConfig.cmake usage
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Thanks for the contribution of MidasConfig.cmake. May I kindly ask for one extension:
Many of our frontends require inclusion of some midas-supplied drivers and libraries
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13 Jul 2021, Konstantin Olchanski, Info, MidasConfig.cmake usage
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> $MIDASSYS/drivers/class/
> $MIDASSYS/drivers/device
> $MIDASSYS/mscb/src/
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11 Oct 2021, Stefan Ritt, Info, Modification in the history logging system
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A requested change in the history logging system has been made today. Previously, history values were
logged with a maximum frequency (usually once per second) but also with a minimum frequency, meaning
that values were logged for example every 60 seconds, even if they did not change. This causes a problem.
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26 Jan 2022, Konstantin Olchanski, Info, MityCAMAC Login
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For those curious about CAMAC controllers, this one was built around 2014 to
replace the aging CAMAC A1/A2 controllers (parallel and serial) in the TRIUMF
cyclotron controls system (around 50 CAMAC crates). It implements the main
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23 Feb 2022, Stefan Ritt, Info, Midas slow control event generation switched to 32-bit banks
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The midas slow control system class drivers automatically read their equipment and generate events containing midas banks. So far these have been 16-bit
banks using bk_init(). But now more and more experiments use large amount of channels, so the 16-bit address space is exceeded. Until last week, there
was even no check that this happens, leading to unpredictable crashes.
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03 Mar 2022, Konstantin Olchanski, Info, zlib required, lz4 internal
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as of commit 8eb18e4ae9c57a8a802219b90d4dc218eb8fdefb, the gzip compression
library is required, not optional.
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03 Mar 2022, Konstantin Olchanski, Info, manalyzer updated
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manalyzer was updated to latest version. mostly multi-threading improvements from
Joseph and myself. K.O. |