Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 3D Numerical Relativity at NCSA   Numerical relativity is finally coming of age with the development of
massively parallel computers. 3D problems, which were completely intractable
several years ago due to limited computer power, can now be performed with grid
sizes of about $200^3$. We report on several new codes developed for solving
the full 3D Einstein equations, and present results of using them to evolve
black holes and gravitational waves.

27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn