Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Portable QCD codes for Massively Parallel Processors. UKQCD
  collaboration   We present a new set of QCD codes in both message passing and data parallel
versions. The message passing package used is PARMACS, although other packages
may be used. Data parallel software is written in High Performance fortran, an
emerging standard based on Fortran 90. Software engineering methods have been
applied to a physics application to create thoroughly tested and documented
codes for the next generation of massively parallel supercomputers.

14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org