On GPUs, double precision
GFLOPS is smaller than the single precision , which results in faster executions when floating point numbers are used.
This can result in the performance improvement of IPCSR being faster than other algorithms from double precision
to single precision.
As it can be seen, Algorithm B is only slightly slower than the compared ones for the single precision case, while is as fast as the compared ones for the double precision
5, it is shown that input_a first converted to floating point number format and it is 4018000000000000h, which is the IEEE 754 double precision
floating-point format of decimal value 6.
Furthermore, our test tool diagnosed, in single and double precision
, that the v-underflow strategy is implemented on the Sun SuperSparc, while the w-underflow strategy is implemented on the more recent Sun UltraSparc.
Moreover, for sparse matrices stored in double precision
the CRS format is about 30% more efficient in terms of memory usage than the COO format.
number occupies 64 bits, where 53 bits are the precision bits.
l: long double precision
and exponent range (t = 64 and [L, U] = [-16382, 16383])
Park and Miller suggest using double precision
or use of computers able to handle integers of up to 50 bits or fairly elaborate programs that perform extended-precision arithmetic by breaking integers into parts then doing arithmetic on, before combining, the parts.
C C THIS VERSION USES BOTH REAL AND COMPLEX DOUBLE PRECISION
C C OPERATIONS.
The length of these vectors grows with the desired accuracy--the transition from standard to double precision
would triple the size of the tables in FL.
floating point support is included to address key industrial market requirements.