Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Technical Note: Radiotherapy dose calculations using GEANT4 and the
  Amazon Elastic Compute Cloud   Cloud computing allows for vast computational resources to be leveraged
quickly and easily in bursts as and when required. Using the Amazon Elastic
Compute Cloud and the Amazon Simple Storage Solution, we describe a technique
that allows for Monte Carlo radiotherapy dose calculations to be performed
using GEANT4 and executed in the cloud. Simulation cost and completion time was
evaluated as a function of instance count using compute instances acquired via
biding on the Elastic Compute Cloud spot market. Bidding for instances on the
instance spot market was found to be 35-60% of the cost of on-demand instances
of the same type. Using the technique, we demonstrate the potential usefulness
of cloud computing as a solution for rapid Monte Carlo simulation for
radiotherapy dose calculation.

20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th