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NSTORB: Difference between revisions

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Created page with "{{TAGDEF|NSTORB|[integer]}} {{DEF|NSTORB|-1|}} Description: {{TAG|NSTORB}} specifies the number of stochastic orbitals per cycle in the stochastic MP2 algorithm.{{cite|Schaef..."
 
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{{TAGBL|NSTORB}} defines the number of stochastic orbitals per cycle, i.e. the number of stochastic orbitals that define one stochastic sample. If the sample is not large enough, the calculations is repeated until the accuracy, defined by ESTOP, is reached.
{{TAGBL|NSTORB}} defines the number of stochastic orbitals per cycle, i.e., the number of stochastic orbitals that define one stochastic sample. If the sample is not large enough, the calculations are repeated until the accuracy, defined by ESTOP, is reached.


As a rule of thumb we recommend to set
As a rule of thumb, we recommend setting


<math>
<math>
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See [[Stochastic_LTMP2|here]] for a small tutorial on stochastic Laplace transformed MP2 calculations.
See [[Stochastic_LTMP2|here]] for a small tutorial on stochastic Laplace transformed MP2 calculations.


== Related Tags and Sections ==
== Related tags and articles ==
{{TAG|NOMEGA}},
{{TAG|NOMEGA}},
{{TAG|ESTOP}},
{{TAG|ESTOP}},
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{{TAG|LMP2LT}},
{{TAG|LMP2LT}},
{{TAG|NBANDS}},
{{TAG|NBANDS}},
{{TAG|KPAR}},
{{TAG|ALGO}}
{{TAG|ALGO}}
{{sc|NOMEGA|Examples|Examples that use this tag}}
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[[Category:INCAR]][[Category:Many-Body Perturbation Theory]] [[Category:MP2]][[Category:VASP6]][[Category:Tutorials]]
[[Category:INCAR tag]][[Category:Many-body perturbation theory]][[Category:MP2]]

Latest revision as of 12:37, 15 April 2026

NSTORB = [integer] 

Default: NSTORB = -1

Description: NSTORB specifies the number of stochastic orbitals per cycle in the stochastic MP2 algorithm.


NSTORB defines the number of stochastic orbitals per cycle, i.e., the number of stochastic orbitals that define one stochastic sample. If the sample is not large enough, the calculations are repeated until the accuracy, defined by ESTOP, is reached.

As a rule of thumb, we recommend setting

[math]\displaystyle{ \texttt{NSTORB} = \sqrt{\texttt{NBANDS}} \;. }[/math]

See here for a small tutorial on stochastic Laplace transformed MP2 calculations.

Related tags and articles

NOMEGA, ESTOP, LSMP2LT, LMP2LT, NBANDS, KPAR, ALGO