Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: MALBEC: a new CUDA-C ray-tracer in General Relativity   A new CUDA-C code for tracing orbits around non-charged black holes is
presented. This code, named MALBEC, take advantage of the graphic processing
units and the CUDA platform for tracking null and timelike test particles in
Schwarzschild and Kerr. Also, a new general set of equations that describe the
closed circular orbits of any timelike test particle in the equatorial plane is
derived. These equations are extremely important in order to compare the
analytical behavior of the orbits with the numerical results and verify the
correct implementation of the Runge-Kutta algorithm in MALBEC. Finally, other
numerical tests are performed, demonstrating that MALBEC is able to reproduce
some well-known results in these metrics in a faster and more efficient way
than a conventional CPU implementation.

36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
14
The categories of this paper are: math-ph