From e44f4fb9aa18a9441c38b827bab77925f6c31699 Mon Sep 17 00:00:00 2001 From: young Date: Sat, 7 Nov 2009 12:38:52 +0000 Subject: [PATCH] Added a comment pointing out the fact that step-36 is not MPI-ready and a note on how to make it so. Also fixed a bad reference in intro. git-svn-id: https://svn.dealii.org/trunk@20059 0785d39b-7218-0410-832d-ea1e28bc413d --- deal.II/examples/step-36/doc/intro.dox | 2 +- deal.II/examples/step-36/doc/results.dox | 12 ++++++++++++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/deal.II/examples/step-36/doc/intro.dox b/deal.II/examples/step-36/doc/intro.dox index 944e985c2e..579cd909c9 100644 --- a/deal.II/examples/step-36/doc/intro.dox +++ b/deal.II/examples/step-36/doc/intro.dox @@ -64,7 +64,7 @@ function $\Psi(\mathbf x)$ that satisfies a relation of the As a consequence, this particle can only exist in a certain number of eigenstates that correspond to the energy eigenvalues $\varepsilon_\ell$ admitted as solutions of this equation. The -Copenhagen interpretation of quantum mechanics posits that, if a +orthodox interpretation of quantum mechanics posits that, if a particle has energy $\varepsilon_\ell$ then the probability of finding it at location $\mathbf x$ is proportional to $|\Psi_\ell(\mathbf x)|^2$ where $\Psi_\ell$ is the eigenfunction that corresponds to this diff --git a/deal.II/examples/step-36/doc/results.dox b/deal.II/examples/step-36/doc/results.dox index 9b59893b03..ed595abe54 100644 --- a/deal.II/examples/step-36/doc/results.dox +++ b/deal.II/examples/step-36/doc/results.dox @@ -184,4 +184,16 @@ freedom? For example, if the particle were a spin-$1/2$ particle? In that case, we may want to start solving a vector-valued problem instead. +
  • Our implementation of the deal.II library here uses the +PETScWrappers and SLEPcWrappers and is suitable for running on serial +machine architecture. However, for larger grids and with a larger +number of degrees-of-freedom, we may want to run our application on +parallel architectures. A parallel implementation of the above code +can be particuarily useful here since the generalized eigenspectrum +problem is somewhat more expensive to solve than the standard problems +considered in the tutorial up-to-now. Fortunately, modifying the above +program to be MPI complient is a relatively straightforward +procedure. A sketch of how this can be done can be found in @ref +step_17 "step-17". + -- 2.39.5