 24 Nov 2004, chris pearson, Info, midas on 64bit opteron
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Midas, version 1.9.5 of 7th October, was installed, with a few changes, on a
64 bit opteron computer, running linux. For this processor, as for the alpha
processor, long integers and addresses are 64 bits. We added a new flag in the
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09 Nov 2004, Pierre-Andre Amaudruz, Bug Fix, New transition scheme
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Problem:
If cm_set_transition_sequence() is used for changing the sequence number, the
command odbedit> start/stop/resume/pause -v report the propre sequence but the
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04 Nov 2004, Jan Wouters, Forum, Frontend code and the ODB
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I would like to know whether all parameters used by the frontend code have to be in the "Experiment/
Run Parameters" section. This section can become big and difficult to maintain, because it is one single
big section of experim.h (EXP_PARAM_DEFINED). I have parameters the various frontends read at the
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 04 Nov 2004, Stefan Ritt, Forum, Frontend code and the ODB
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Hi Jan,
I usually keep under /Experiment/Run Parameters only those settings which are kind of "global" and thus of
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02 Nov 2004, Renee Poutissou, Info, Event Builder info in mhttpd Status page
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Information about the Event Builder statistics has been removed from the
Status page in mhttpd. I heard from Pierre that this information might
be redundant when using the new Event Builder format???
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22 Oct 2004, Konstantin Olchanski, Bug Fix, mhttpd message colouring
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I commited a fix to mhttpd logic that decides which messages should be shown in
"red" colour- before, any message with square brackets and colons would be
highlighted in red. Now only messages matching the pattern [...:...] are
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13 Oct 2004, Konstantin Olchanski, Bug Report, TWIST upgrade bombed...
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The upgrade of TWIST to the latest midas has bombed- we see mevb and mlogger
crashes during shared memory data buffer accesses. I am looking into it and I
will add information as I figure things out. K.O. |
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13 Oct 2004, Pierre-Andre Amaudruz, Bug Report, TWIST upgrade bombed...
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> The upgrade of TWIST to the latest midas has bombed- we see mevb and mlogger
> crashes during shared memory data buffer accesses. I am looking into it and I
> will add information as I figure things out. K.O.
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13 Oct 2004, Konstantin Olchanski, Bug Report, TWIST upgrade bombed...
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> > The upgrade of TWIST to the latest midas has bombed- we see mevb and mlogger
> > crashes during shared memory data buffer accesses. I am looking into it and I
> > will add information as I figure things out. K.O.
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13 Oct 2004, Konstantin Olchanski, Bug Report, TWIST upgrade bombed...
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> The upgrade of TWIST to the latest midas has bombed- we see mevb and mlogger
> crashes during shared memory data buffer accesses. I am looking into it and I
> will add information as I figure things out. K.O.
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14 Oct 2004, Stefan Ritt, Bug Report, TWIST upgrade bombed...
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Agree.
Once you did the modification, please check following situation: Create a fresh
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14 Oct 2004, Konstantin Olchanski, Bug Report, TWIST upgrade bombed...
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> The upgrade of TWIST to the latest midas has bombed- we see mevb and mlogger
> crashes during shared memory data buffer accesses. I am looking into it and I
> will add information as I figure things out. K.O.
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13 Oct 2004, Konstantin Olchanski, Suggestion, No al_clear_alarm()?
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We have al_trigger_alarm(), but no matching al_clear_alarm(), and I need it to
clear my alarm once the alarm condition no longer exists. Any objections if I
add this function? K.O. |
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13 Oct 2004, Stefan Ritt, Suggestion, No al_clear_alarm()?
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> We have al_trigger_alarm(), but no matching al_clear_alarm(), and I need it to
> clear my alarm once the alarm condition no longer exists. Any objections if I
> add this function? K.O.
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13 Oct 2004, Konstantin Olchanski, Suggestion, No al_clear_alarm()?
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> > We have al_trigger_alarm(), but no matching al_clear_alarm(), and I need it to
> > clear my alarm once the alarm condition no longer exists. Any objections if I
> > add this function? K.O.
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13 Oct 2004, Konstantin Olchanski, Bug Report, silly odbedit "rename Display xxx/yyy"
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odbedit command "rename Display xxx/yyy" creates a key named "xxx/yyy" (yes,
with a slash in the name) and this key cannot be deleted or renamed...
K.O. |
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13 Oct 2004, Stefan Ritt, Bug Report, silly odbedit "rename Display xxx/yyy"
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> odbedit command "rename Display xxx/yyy" creates a key named "xxx/yyy" (yes,
> with a slash in the name) and this key cannot be deleted or renamed...
> K.O.
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13 Oct 2004, Konstantin Olchanski, Bug Report, db_paste: found string exceeding MAX_STRING_LENGTH
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I am updating TWIST to the latest MIDAS and when I load a saved .odb file, I get
these messages. Their text ought to say where and what strings it does not like.
K.O.
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13 Oct 2004, Stefan Ritt, Bug Report, db_paste: found string exceeding MAX_STRING_LENGTH
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Can you attach
/twist/data_onl/current/run17548.odb
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29 Sep 2004, Stefan Ritt, Info, Increased number of clients in midas.h, important!
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Due to some request several limitations like the maximal number of clients to the ODB have
been increased in midas.h and committed to CVS. It is important to note that clients compiled
with the old limits cannot coexist with clients compiled with the new limits. You will get
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03 Oct 2004, Konstantin Olchanski, Info, Increased number of clients in midas.h, important!
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> It is important to note that clients compiled
> with the old limits cannot coexist with clients compiled with the new limits. You will get
> ODB corruption notifications and everything will crash, and you wonder where this comes from.
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03 Oct 2004, Stefan Ritt, Info, Increased number of clients in midas.h, important!
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> Stefan, to avoid confusion from crashes caused by incompatible ODBs would it be possible to add a "version number" to ODB,
together with a check and an error message
> saying "oops... incompatible ODB, please rebuild your programs"? We tend to have different versions of midas floating around and
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03 Oct 2004, Konstantin Olchanski, Info, Increased number of clients in midas.h, important!
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> However, we are planning to make a new release 1.9.5 soon (next week), so can can people tell not to "mix" 1.9.5 with pre-1.9.5 programs.
Right. We cannot fix the past, but we should fix the future. BTW, "do not mix versions" is hard to enforce and mismatches did, do and
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04 Oct 2004, Stefan Ritt, Info, Increased number of clients in midas.h, important!
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> Right. We cannot fix the past, but we should fix the future. BTW, "do not mix versions" is hard to enforce and mismatches did, do and
> will happen
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08 Oct 2004, chris pearson, Info, Increased number of clients in midas.h, important!
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> > For one thing, looking at a given midas-using executable, how do I tell what version of midas it has inside?
>
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08 Oct 2004, Konstantin Olchanski, Info, Increased number of clients in midas.h, important!
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> A lot of programs have a commandline option, such as "--version", where they return the program version number then exit. As well as the
> program version number, the version number of the midas library it's linked with could also be returned (There can be more than one
> libmidas.so on a system and this would show which one was currently being linked)
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03 Oct 2004, Konstantin Olchanski, Info, mscb usb support for macosx
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After a felicitous confuence of stellar bodies (Stefan, myself, some mscb hardware
and a mac laptop all in the same room for a few days), I wrote some MacOSX
code to support the MSCB-USB dongle using the native IoKit USB API. During testing,
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03 Oct 2004, Stefan Ritt, Info, Introduction of new transition scheme
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A new transition scheme has been implemented and committed. Previously, one had the
possibility to register for PRE/POST transitions, which was necessary in order to first
stop the frontends, then stop the logger to close the data file. While this scheme
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28 Sep 2004, Piotr Zolnierczuk, Forum, MIDAS/MVME167/Linux
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Hi,
has anyone tried runnning midas frontend on a Linux running
on a Motorola MVME167 motorola embedded CPU?
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21 Sep 2004, Konstantin Olchanski, , ODB-EPICS gateway
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At TRIUMF, we use several different versions of code to interface MIDAS and
EPICS (http://www.aps.anl.gov/epics). Now that we more or less understand
our needs, I propose this design for a simplified "EPICS" MIDAS frontend. I
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21 Sep 2004, Stefan Ritt, , ODB-EPICS gateway
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The easiest way to achieve this is to write a new class driver, probably derived
from the multi.c class driver. One has just to rename all "output" with "write"
(or better "ODB2EPICS") and all "input" with "EPICS2ODB". The multi class driver
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31 Aug 2004, Konstantin Olchanski, , midas odb locking
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One of our experiments is suffering from periodic ODB corruption and I
suspected that there might be a problem with ODB locking. In the last few
days, I finally had time to read the ODB locking code, to write a little
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15 Sep 2004, Konstantin Olchanski, , midas odb locking
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After some discussion with Stefan-
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16 Sep 2004, Stefan Ritt, , midas odb locking
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> I will add a timeout of 10 minutes, then shutdown the ODB client with an error message.
I added a timeout handling to db_lock_database. It was already present in
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31 Aug 2004, Konstantin Olchanski, , mlogger crash if using mserver.
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Our users keep making a simple mistake- they set MIDAS_SERVER_HOST in their
environement. Most midas programs do not mind this- they go through the
mserver, inefficient but benign- except for the mlogger, which dumps core
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07 Sep 2004, Stefan Ritt, , mlogger crash if using mserver.
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I trapped myself into that problem recently so it's the right time to fix it (;-).
We have two options:
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15 Sep 2004, Konstantin Olchanski, , mlogger crash if using mserver.
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> I trapped myself into that problem recently so it's the right time to fix it (;-).
> We have two options:
> a) Make the logger work remotely, even if it's suboptimal and
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09 Jul 2004, Stefan Ritt, , Introduction of environment variable MIDASSYS
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Starting from midas version 1.9.4 on, the environment variable 'MIDASSYS'
should be defined and point to the installation directory of midas. The
purpose of that is that add-on packages (like the upcoming ROME system) can
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09 Jul 2004, Piotr Zolnierczuk, , Introduction of environment variable MIDASSYS
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> Starting from midas version 1.9.4 on, the environment variable 'MIDASSYS'
> should be defined and point to the installation directory of midas. The
> purpose of that is that add-on packages (like the upcoming ROME system) can
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09 Jul 2004, Stefan Ritt, , Introduction of environment variable MIDASSYS
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> Here's my suggestion
> MIDASSYS=/opt/midas-1.9.4 (for example)
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09 Jul 2004, Piotr Zolnierczuk, , Introduction of environment variable MIDASSYS
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> I guess we should follow the "standard" as much as possible. MIDASSYS was inspired by
> ROOTSYS. Now where do people usually install ROOT? Is it /opt/root-x.x.x or something
> else. Some years ago (when I did the last time some linux administration) optional
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09 Jul 2004, John M O'Donnell, , Introduction of environment variable MIDASSYS
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For a long time the "de facto" standard was to spread a package around in many
directories under /usr/local. This proved to be a bad idea, as removing the
package
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12 Jul 2004, Stefan Ritt, , Introduction of environment variable MIDASSYS
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> With POSIX there is a written standard, which says that each pacakge goes in
> it's own
> directory under /opt. eg. /opt/midas. Each package gets to define it's own
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20 Jul 2004, Konstantin Olchanski, , Introduction of environment variable MIDASSYS
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> > Starting from midas version 1.9.4 on, the environment variable 'MIDASSYS' ...
> 2. What will the entire structure tree look like?
>
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21 Jul 2004, Stefan Ritt, , Introduction of environment variable MIDASSYS
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> Where should MIDAS be installed?
I personally don't have any preference, as long as it's in accordance with "the standard"
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05 Dec 2003, Konstantin Olchanski, , HOWTO setup MIDAS ROOT tree analysis
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> root -l
root> TFile *f = new TFile("run00064.root")
root> TTree *t = f->Get("Trigger")
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20 Jul 2004, Konstantin Olchanski, , HOWTO setup MIDAS ROOT tree analysis
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Updating the instructions to ROOT version 3.10.2. Example is from TRIUMF-KOPIO
tree analysis.
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05 Dec 2003, Konstantin Olchanski, , HOWTO setup MIDAS ROOT tree analysis
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> root -l
root> TFile *f = new TFile("run00064.root")
root> TTree *t = f->Get("Trigger")
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20 Jul 2004, Konstantin Olchanski, , HOWTO setup MIDAS ROOT tree analysis
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Updating the instructions to ROOT version 3.10.2. Example is from TRIUMF-KOPIO
tree analysis.
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05 Dec 2003, Konstantin Olchanski, , HOWTO setup MIDAS ROOT tree analysis
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> root -l
root> TFile *f = new TFile("run00064.root")
root> TTree *t = f->Get("Trigger")
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20 Jul 2004, Konstantin Olchanski, , HOWTO setup MIDAS ROOT tree analysis
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Updating the instructions to ROOT version 3.10.2. Example is from TRIUMF-KOPIO
tree analysis.
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