[mcstas-users] Can' Scan McStas3 on Win11

Thu Jun 13 22:30:59 CEST 2024

Hi Todd.

I reproduce your issue with McStas 3.4 - also here on my mac, and looking a bit further was actually known already :-)
https://github.com/McStasMcXtrace/McCode/issues/1551

The problem is that the scan-tool in 3.4 and earlier attempts to pick up monitor-data from “datafiles” and in fact the simple Monitor() does not store output files in those versions.

A simple workaround is to replace the (scalar counting) Monitor() instances with (pixellated) PSD_monitor(), see attached instr file.
( For reference the issue has in fact been fixed in the McStas sources and will disappear with the next release of McStas. :-) )

Hope the workaround is OK for your use - and sorry for the inconvenience.

All the best, ,

Peter

On 13 Jun 2024, at 21.55, Sherline, Todd <sherlinete at ornl.gov> wrote:

Peter,

Thank you for the reply.  Since my previous email, I tested scans using BNL_H9.instr as downloaded from the McStas site.  I was able to scan over lambda using that instr file.

I’ve attached the instr I’m using and the supplementary files it calls.  When I run it with a single set of parameters, it runs fine.  When I scan over a parameter, it generates output for the first value within a subdirectory “0” and creates an empty mccode.dat file.

The screenshot shows what I type in.  The scan is over the IncidentCollRadius and has argument 0.002,0.0025, but it got cut off from the screen.

The end of the output looks like:

Detector: Norm_Mon_2_Flux_I=709023 Norm_Mon_2_Flux_ERR=5152.36 Norm_Mon_2_Flux_N=21731 "Norm_Mon_2_Flux"
Detector: SampleColl_up_Flux_Tile_I=709023 SampleColl_up_Flux_Tile_ERR=5152.36 SampleColl_up_Flux_Tile_N=21731 "SampleColl_up_Flux_Tile"
Detector: SampleColl_dn_Flux_Ap_I=53261.2 SampleColl_dn_Flux_Ap_ERR=1421.34 SampleColl_dn_Flux_Ap_N=1563 "SampleColl_dn_Flux_Ap"
Detector: Sample_Position_Flux_Tile_I=53261.2 Sample_Position_Flux_Tile_ERR=1421.34 Sample_Position_Flux_Tile_N=1563 "Sample_Position_Flux_Tile"
Detector: Sample_Position_Flux_Ap_I=45675.9 Sample_Position_Flux_Ap_ERR=1321.34 Sample_Position_Flux_Ap_N=1324 "Sample_Position_Flux_Ap"

Finally [SNAP: Z:\Sherline\Work\Experiments\ULT_DAC\IPTS-32577.1\McStas_SNAP\MyStuff\TestingForScans\StartWithThomass\SNAP_McStas3_5_20240613_153300/0]. Time: 7 [s]
INFO: Finish running step, get detectors
Traceback (most recent call last):
  File "C:\mcstas-3.4\lib\tools\Python\mcrun\mcrun.py", line 562, in <module>
    main()
  File "C:\mcstas-3.4\lib\tools\Python\mcrun\mcrun.py", line 531, in main
    scanner.run()  # in optimisation.py
  File "C:\mcstas-3.4\lib\tools\Python\mcrun\optimisation.py", line 259, in run
    detectors = mcsimdetectors(current_dir)
  File "C:\mcstas-3.4\lib\tools\Python\mcrun\optimisation.py", line 169, in mcsimdetectors
    return [Detector(d['component'], *d['values'].split(), d['filename']) for d in blocks]
  File "C:\mcstas-3.4\lib\tools\Python\mcrun\optimisation.py", line 169, in <listcomp>
    return [Detector(d['component'], *d['values'].split(), d['filename']) for d in blocks]
KeyError: 'filename'

Sincerely,
Todd.

<image001.png>

From: Peter Kjær Willendrup <pkwi at dtu.dk<mailto:pkwi at dtu.dk>>
Sent: Thursday, June 13, 2024 3:12 PM
To: mcstas <mcstas-users at mcstas.org<mailto:mcstas-users at mcstas.org>>
Cc: Sherline, Todd <sherlinete at ornl.gov<mailto:sherlinete at ornl.gov>>
Subject: [EXTERNAL] Re: [mcstas-users] Can' Scan McStas3 on Win11

Hi Todd

I believe we are no longer sensitive to the mention proxy issue, and this should have nothing to do with the issue you mention.
- And there should be no reason to reinstall anything if you are able to bring up the gui.

Can you elaborate a bit on how you are attempting to scan - and how it fails for you? (e.g. send me a screenshot)

To run a scan in mcgui:
- Bring up the “run dialogue”
- Supply the scan-range by adding e.g. 0,1 (no whitespace) in a parameter entry box
- Supply the wanted number of steps e.g. 11

To run a scan on the commandline
- use mcrun and supply parameter range and number of steps using e.g.

mcrun instrument.instr par1=0,1 -N11

Best,
Peter

Sherlinete at ornl.gov<http://ornl.gov/> wrote:

HI all,

I cannot perform parameter scans using my installation of McStas 3.4.  I am running on a 64 bit Windows 10 Enterprise machine.
I noticed that there are specific installation instructions for the case when my machine is behind a proxy server.  I am at the SNS, so I assume that is the case, but I did not follow those instructions when I installed the McStas 3.4 Metapackage.  Could this be the reason I cannot run a scan?  Other than the problem with scans, the installation seems to work fine.  Should I try reinstalling it using the instructions specific to proxy servers?

Any other ideas why this problem may crop up?

Best,
Todd.

Peter Kjær Willendrup
Forskningsingeniør, Specialkonsulent

DTU Physics

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Technical University of Denmark

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Department of Physics
Fysikvej
Building 307
DK-2800 Kongens Lyngby

Main office at
ESS DMSC
Building 305
DK-2800 Kongens Lyngby

Direct +45 2125 4612
Mobil +45 2125 4612
Fax +45 4593 2399
pkwi at fysik.dtu.dk<mailto:pkwi at fysik.dtu.dk>

<Screenshot 2024-06-13 153819.jpg><a1G0AD-2-f5.dat><SNAP_McStas3_5.instr><SNAPguide_new_final_final>_______________________________________________
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Peter Kjær Willendrup
Forskningsingeniør, Specialkonsulent

DTU Physics

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Technical University of Denmark

[cid:465e6203-1a22-4bca-8ff3-aea658aae933 at EURP192.PROD.OUTLOOK.COM]

Department of Physics
Fysikvej
Building 307
DK-2800 Kongens Lyngby

Main office at
ESS DMSC
Building 305
DK-2800 Kongens Lyngby

Direct +45 2125 4612
Mobil +45 2125 4612
Fax +45 4593 2399
pkwi at fysik.dtu.dk

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