A parallel/vectorized double-precision exponential core to accelerate computational science applications
Robin Pottathuparambil, Ron R. Sass · 2009
Many natural processes exhibit exponential decay and, consequently, computational scientists make extensive use of e-χx in computer simulation experiments. While it is common to implement transcendental functions (sine, cosine, exponentiation, etc.) in hardware using the well-known CORDIC algorithm, many contemporary FPGA implementations either use fixed point or reduced precision floating-point operations (which suffers from a high average/mean error). Unfortunately, these solutions are unacceptable for many computational scientist who require the accuracy of doubleprecision values.