PTRAC File - MCNP - Multi-core computing

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SUMMARY

The discussion centers on generating a PTRAC file using MCNP 6.2 for modeling a cold neutron source (CNS) in a Brazilian multipurpose reactor project. Luiz, a postdoc, inquires about the feasibility of utilizing multi-core computing for this purpose. The conversation highlights the potential use of libraries .05c or 0.85c, noting the limited options for thermal scattering at low temperatures. Additionally, the importance of CPU capacity and the choice between OpenMP and MPI for efficient execution are emphasized as critical factors in the process.

PREREQUISITES
  • Familiarity with MCNP 6.2 for neutron transport simulations
  • Understanding of PTRAC file generation and its significance in neutron source modeling
  • Knowledge of multi-core computing techniques, specifically OpenMP and MPI
  • Basic concepts of thermal scattering libraries and their applications at low temperatures
NEXT STEPS
  • Research how to generate PTRAC files in MCNP 6.2
  • Explore multi-core computing strategies using OpenMP and MPI for MCNP simulations
  • Investigate thermal scattering libraries available for low-temperature applications
  • Examine case studies of cold neutron source modeling in nuclear research
USEFUL FOR

Researchers, nuclear engineers, and computational physicists involved in neutron transport simulations and modeling cold neutron sources will benefit from this discussion.

Luizpo
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Homework Statement:: PTRAC File - MCNP - Multi-core computing
Relevant Equations:: No equations

My name is Luiz. I am a postdoc at the institute of energy and nuclear research in São Paulo-Brazil.
Our group models a cold neutron source (CNS) for the Brazilian multipurpose reactor project, through MCNP 6.2.
We need a PTRAC file in the CNS region and would like to know if it is possible to obtain this file through multi-core computing. If yes, how should we execute it?
 
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I may not be the right person to answer, but this sounds interesting. I assume you will be basing this off the libraries .05c or 0.85c, but the thermal scattering libraries have very few options at low temperature. Is your setup 18 liters of liquid deuterium at 20K?

Why is PTRAC important and will it have very narrow criteria? Only I'm not sure CPU capacity will be limiting if it's streaming a large number of events to disk. What do you know of the computer, do you need to use OpenMP or MPI?
 

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