 30 Mar 2011, Stefan Ritt, Forum, How large does "bank32" support?
|
> Reading an FADC buffer often needs large buffer size, especially while several
> FADCs work together. I want to know how large a bank32 can support.
|
|
10 May 2011, Stefan Ritt, Forum, simple example frontend for V1720
|
[quote="Jianglai Liu"]Hi,
Who has a good example of a frontend program using CAEN V1718 VME-USB bridge and
|
 20 Jun 2011, Stefan Ritt, Info, Javascript ODB interface revised
|
The Javascript interface to the ODB has been revised. This extends the capabilities of custom web pages requesting data from the ODB. By grouping several
request together, the number of round-trips is minimized and the response time is reduced. Following functions are new or extended:
|
21 Jun 2011, Stefan Ritt, Info, New MIDAS sequencer 
|
A new sequencer for starting and stopping runs has been implemented. Although it is till kind of in a preliminary phase, it is usable, so I would like to
share the syntax with you.
|
|
19 Dec 2011, Stefan Ritt, Bug Report, bk_delete uses memcpy instead of memmove
|
> > In midas.c, the bk_delete function removes a bank by decrementing the total
> > event size and then copying the remaining banks into the location of the first
> > using memcpy from string.h.
|
|
30 Jan 2012, Stefan Ritt, Info, IEEE Real Time 2012 Call for Abstracts
|
Hello,
I'm co-organizing the upcoming Real Time Conference, which covers also the field of data acquisition, so it might be interesting for people working
|
|
01 Mar 2012, Stefan Ritt, Bug Report, Problem with semaphores
|
> Anyhow, if anybody can suggest such an advanced locking library it would be great. Will save me the
> effort of writing one.
|
|
19 Apr 2012, Stefan Ritt, Bug Report, Build error with mlogger: invalid conversion from ‘void*’ to ‘gzFile’
|
[quote="Exaos Lee"]I tried to build MIDAS under ArchLinux, failed on errors as following:
[CODE]src/mlogger.cxx: In function ‘INT midas_flush_buffer(LOG_CHN*)’:
src/mlogger.cxx:1011:54: error: invalid conversion from ‘void*’ to ‘gzFile’ [-fpermissive]
|
|
27 Apr 2012, Stefan Ritt, Bug Report, Build error with mlogger: invalid conversion from ‘void*’ to ‘gzFile’
|
[quote="KO]BTW, I read the midas elog via email and if you post html or elcode messages, I receive complete
gibberish. For prompt service, please select message type "plain". (yes, you cannot use fancy colours and
blinking text, but better than me not reading your stuff at all).
|
|
14 Jun 2012, Stefan Ritt, Bug Report, Cannot start/stop run through mhttpd
|
> I found the problem only appears when I run mhttpd in scripts, whether bash or python.
> And I'm quite sure that the MIDAS environments (e.g. PATH, MIDAS_EXPTAB, MIDASSYS, etc.)
> are set in such scripts. If I start mhttpd in an xterm with or without "-D", it works
|
|
21 Jun 2012, Stefan Ritt, Info, midas vme benchmarks
|
Just for completeness: Attached is the VME transfer speed I get with the SIS3100/SIS1100 interface using
2eVME transfer. This curve can be explained exactly with an overhead of 125 us per DMA transfer and a
continuous link speed of 83 MB/sec. |
|
21 Jun 2012, Stefan Ritt, Bug Report, Cannot start/stop run through mhttpd
|
> I agree. Somehow mhttpd cannot run mtransition. I am not super happy with this dependance on user $PATH settings and the inability to capture error messages
> from attempts to start mtransition. I am now thinking in the direction of running mtransition code by forking. But remember that mlogger and the event |
|
22 Jun 2012, Stefan Ritt, Info, midas vme benchmarks
|
> > Just for completeness: Attached is the VME transfer speed I get with the SIS3100/SIS1100 interface using
> > 2eVME transfer. This curve can be explained exactly with an overhead of 125 us per DMA transfer and a
> > continuous link speed of 83 MB/sec.
|
|
25 Jun 2012, Stefan Ritt, Info, midas vme benchmarks
|
> P.S. Observe the ever present unexplained event rate fluctuations between 130-140 event/sec.
An important aspect of optimizing your system is to keep the network traffic under control. I use GBit Ethernet between FE and BE, and make sure the switch |
|
13 Jul 2012, Stefan Ritt, Bug Report, Crash after recursive use of rpc_execute()
|
> Then I realized that I see a recursive call to rpc_execute(): rpc_execute() calls tr_stop() calls cm_yield() calls
> ss_suspend() calls rpc_execute(). The second rpc_execute successfully completes, but leave corrupted
> data for the original rpc_execute(), which happily crashes. At the moment of the crash, recursive call to
|
|
05 Sep 2012, Stefan Ritt, Info, New pipe compression implemented in mlogger
|
A new pipe compression has been implemented in mlogger thanks to Fedor Ignatov from BINP
Novosibirsk. The way it works that the logger write into a pipe instead directly into a file. The pipe can
then be connected to any compression program without the need to copile against any additional C
|
|
11 Sep 2012, Stefan Ritt, Info, MIDAS button to display image
|
> Hi,
>
> I've written a python script that reads some data from a file and generates a
|
|
09 Oct 2012, Stefan Ritt, Bug Fix, [PATCH] mana.c compile fix, gz files
|
> Hi,
>
> I had to apply the attached patch to convince SuSE Linux 12.2 to compile mana.c
|
|
13 Dec 2012, Stefan Ritt, Bug Report, ss_thread_kill() kills entire program
|
The Linux thread functionality was introduced by Konstantin, so he might have a better idea about that.
What I usually do is a graceful thread shutdown just by a flag. Like
|
|
14 Dec 2012, Stefan Ritt, Suggestion, Midas + Elog with SSL
|
> I've been trying to set up midas to create an automatic elog entry at the end of
> each run and I've run into a problem. I've setup an elog on our server which
> uses SSL and it seems that the melog provided by midas to create logbook entries
|