Ryan Reece's Sandbox

Here you will find notes from my experiences computing in ATLAS. You can find some more notes on ROOT, python, pyROOT, and makefiles at my website: http://www.hep.upenn.edu/~rreece/computing.html.


Athena Notes


Using Athena at BNL

Following the advice of http://www.usatlas.bnl.gov/twiki/bin/view/AtlasSoftware/AtlasSWReleases.html, my cmthome/requirements file at BNL is

#---------------------------------------------------------------------
set CMTSITE STANDALONE
macro PROJ_RELEASE   "latest" \
         11.3.0         "11.3.0" \
         12.0.6         "12.0.6" \
         12.0.7         "12.0.7" \
         13.0.10        "13.0.10" \
         13.0.20        "13.0.20" \
         13.0.25        "13.0.25" \
         13.0.26        "13.0.26" \
         13.0.28        "13.0.28" \
         13.0.30        "13.0.30" \
         13.1.0         "13.1.0" \
         13.2.0         "13.2.0" \
         rel_0          "rel_0" \
         rel_1          "rel_1" \
         rel_2          "rel_2" \
         rel_3          "rel_3" \
         rel_4          "rel_4" \
         rel_5          "rel_5" \
         rel_6          "rel_6"

macro PROJ_BASE_RELEASE   "$(PROJ_RELEASE)" \
         13.0.25.2      "13.0.25" \
         13.0.25.3      "13.0.25" \
         13.0.25.4      "13.0.25" \
         13.0.25.5      "13.0.25" \
         13.0.25.6      "13.0.25" \
         13.0.25.7      "13.0.25" \
         13.0.25.8      "13.0.25" \
         13.0.25.9      "13.0.25"

macro PROJ_SUBDIR    "$(PROJ_BASE_RELEASE)" \
         bugfix      "bugfix/$(PROJ_BASE_RELEASE)" \
         dev         "dev/$(PROJ_BASE_RELEASE)"

set SITEROOT /opt/usatlas/kit_rel/${PROJ_SUBDIR}
macro ATLAS_DIST_AREA ${SITEROOT}
macro ATLAS_TEST_AREA ${HOME}/testarea/${PROJ_BASE_RELEASE}
macro ATLAS_GROUP_AREA "/afs/cern.ch/atlas/groups/PAT/Tutorial/EventViewGroupArea/EVTags-13.0.30.1"
apply_tag oneTest
apply_tag setupCMT
apply_tag setup
apply_tag noCVSROOT
apply_tag 32
use AtlasLogin AtlasLogin-* $(ATLAS_DIST_AREA)
set PATHENA_GRID_SETUP_SH /afs/usatlas.bnl.gov/lcg/current/etc/profile.d/grid_env.sh
macro setup_slc3compat "" \
      gcc323  "/opt/usatlas/kit_rel/SLC3/setup_slc3compat"
setup_script $(setup_slc3compat)
#---------------------------------------------------------------------

AthenaFramework

EventView


Latex


Here I test out using LaTeX in a TWiki.

 We next turn our attention studying the solutions of the Klein-Gordon equation. Consider the following. \begin{equation}     \label{eq:fk}     f_{k}(x) \equiv \frac{1}{\sqrt{(2 \pi)^3 \: 2 \omega_k}} \: e^{- i \: k \cdot x} \end{equation} where  \begin{equation}     k^\mu \equiv \left(\omega_k, \vec{k}\right)^\mu \end{equation} and \begin{equation}     \label{eq:omega-k}     \omega_k \equiv + \: \sqrt{\left.\vec{k}\right.^2 + m^2} \end{equation} Plugging in the \textbf{plane-waves} $f_{k}(x)$ in for $\phi(x)$ shows that they are solutions. The functions $f_{k}(x)$ form a complete basis for a complex function space. The appropriate inner product in this space involves the following operation. \begin{equation}     \label{eq:arrow-derivative} a \stackrel{\leftrightarrow}{\partial_0} b \equiv a \: \partial_0 b - \left(\partial_0 a\right) b \end{equation} The completeness relation is derived by pluggin equations (\ref{eq:fk}) and (\ref{eq:arrow-derivative}) into the following. \begin{eqnarray*}     \int  d^3x \: f^*_{k'}(x) \: i \stackrel{\leftrightarrow}{\partial_0} f_k(x)     &=& \frac{i}{2 \: \sqrt{\omega_k \: \omega_{k'}}} \: \frac{1}{(2\pi)^3}         \int d^3x \left[ e^{i \: k' \cdot x} \: \partial_0 e^{- i \: k \cdot x}         - \left(\partial_0 e^{i \: k' \cdot x}\right) e^{- i \: k \cdot x}\right]\\     &=& \frac{i}{2 \: \sqrt{\omega_k \: \omega_{k'}}} \: \frac{1}{(2 \pi)^3}         \int d^3x \: (-i) \: \left(\omega_k + \omega_{k'}\right) e^{i (k' - k) \cdot x}\\     &=& \frac{\omega_k + \omega_{k'}}{2 \: \sqrt{\omega_k \: \omega_{k'}}} \:         e^{i(\omega_{k'} - \omega_k) t} \:         \underbrace{\frac{1}{(2 \pi)^3} \int d^3x \: e^{- i \left(\vec{k'} - \vec{k}\right) \cdot \vec{x}}}_{             \delta^3 \left(\vec{k} - \vec{k'}\right)}\\     &=& \frac{2 \: \omega_k}{2 \: \omega_k} \: e^{0} \: \delta^3\big(\vec{k} - \vec{k'}\big) \end{eqnarray*} \begin{equation} \therefore \qquad \int d^3x \: f^*_{k'}(x) \: i \stackrel{\leftrightarrow}{\partial_0} f_k(x)     = \delta^3\big(\vec{k} - \vec{k'}\big) \end{equation} Similary, the orthoginality relation is derived by \begin{eqnarray*}     \int  d^3x \: f_{k'}(x) \: i \stackrel{\leftrightarrow}{\partial_0} f_k(x)     &=& \frac{i}{2 \: \sqrt{\omega_k \: \omega_{k'}}} \: \frac{1}{(2\pi)^3}         \int d^3x \left[ e^{- i \: k' \cdot x} \: \partial_0 e^{- i \: k \cdot x}         - \left(\partial_0 e^{- i \: k' \cdot x}\right) e^{- i \: k \cdot x}\right]\\     &=& \frac{i}{2 \: \sqrt{\omega_k \: \omega_{k'}}} \: \frac{1}{(2 \pi)^3}         \int d^3x \: (-i) \: \left(\omega_k - \omega_{k'}\right) e^{- i (k' + k) \cdot x}\\     &=& \frac{\omega_k - \omega_{k'}}{2 \: \sqrt{\omega_k \: \omega_{k'}}} \:         e^{- i (\omega_{k'} + \omega_k) t} \:         \underbrace{\frac{1}{(2 \pi)^3} \int d^3x \: e^{i \left(\vec{k'} + \vec{k}\right) \cdot \vec{x}}}_{             \delta^3 \left(\vec{k} + \vec{k'}\right)}\\     &=& \cancelto{0}{\frac{\omega_k - \omega_k}{2 \: \omega_k}} \: e^{-i \:2\:\omega_k} \: \delta^3\big(\vec{k} + \vec{k'}\big) \end{eqnarray*} \begin{equation} \therefore \qquad \int d^3x \: f_{k'}(x) \: i \stackrel{\leftrightarrow}{\partial_0} f_k(x) = 0 \end{equation}


Major updates:
-- RyanReece - 21 Dec 2007
Latex rendering error!! dvi file was not created.
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