Under its SciDAC grants, the U.S. lattice gauge
theory community has created a unified program
environment that enables its members to achieve high
efficiency on terascale computers. Among the design
goals were to enable users to quickly adapt codes to
new architectures, easily develop new applications
and incorporate new algorithms, and preserve their
large investment in existing codes. These goals were
achieved through the development of the QCD
Applications Programming Interface (QCD API), which
is illustrated in the figure on the right.
All of the fundamental components of the QCD API have been
implemented and are in use on the U.S. QCDOC hardware at BNL, on
clusters at FNAL and JLab, and on a number of general purpose
supercomputers. The QCD API is being used by a growing number of
physicists in the U.S. and abroad.
Complete USQCD software code and
documentation.
Members of the Software
Committee
