[mcstas-users] rssa source file

[Peter Kjær Willendrup]

Dear Santiago,


First of all good to hear that the MCPL solution seems to work for you.

As I remember it could be the case that the _mcnp_ss_ components implement SSR/SSW I/O wrt. MCNPX - which could easily explain that the record sizes do not match up. (Esben Klinkby (cc:) may know the full details.)

In any case, I would indeed suggest a complete move to MCPL as that code makes diagnostics on the file format to ensure correct import of MCNP5, MCNP6 and MCNPX.

(I will even consider obsoleting the _mcnp_ss_ component files for next McStas release)


Best,

Peter Willendrup



Peter Kjær Willendrup
Forskningsingeniør, Speciakonsulent
Næstformand for DTU Fysik LSU



DTU Physics

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Technical University of Denmark



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Department of Physics
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Direct +45 2125 4612

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pkwi at fysik.dtu.dk<mailto:pkwi at fysik.dtu.dk>



On 11 Sep 2018, at 01.13, Santiago Gómez <sgomez at cab.cnea.gov.ar<mailto:sgomez at cab.cnea.gov.ar>> wrote:

I am trying to read a rssa source file (generated with SSW card in MCNP5 v1.6) with the component Virtual_mcnp_ss_input.comp using the instrument file Test_SSW_SSR.instr, but i get this error message:

Instrument parameters for test_SSW_SSR (source.instr)
[test_SSW_SSR] Initialize
MCNP_input: testread: opening MCNP SSW file 'rssa' )
At line 63 of file neutronics-subs.f (unit = 123, file = 'rssa')
Fortran runtime error: I/O past end of record on unformatted file


I also get the same error with a rssa source file generate by MCNP6 v1.0.


I did the compilation of the neutronics-subs.o file with gfortran version 4.8.3.


Can any one help?


I saw in the maillis a similar issue reported with Virtual_mcnp_ss_input.comp and fortran compiler, and a possible solution proposed by Peter Willendrup was to convert SSW to MCPL.

I tried this and it is working good, but I would like know if it is better to keep using converted MCPL than SSW MCNP source files?


Best regards


--
Santiago Miguel Gómez
Departamento de Física de Reactores y Radiaciones
Centro Atómico Bariloche
Int.: 5971

"Si queremos un mundo de paz y de justicia hay que poner decididamente la
inteligencia al servicio del amor." Antoine de Saint-Exupery
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