Implementing and Evaluating an Heterogeneous, Scalable, Tridiagonal Linear System Solver with OpenCL to Target FPGAs, GPUs, and CPUs

Table 5

Maximum observed average (n = 16) compute performance and estimated energy efficiency of oclspkt for devices and heterogeneous combinations.

Device	Compute performance	Estimated energy efficiency
CPU	279	1.39
GPU	501	12.9
FPGA	280	28.6
CPU + GPU	396	1.67
CPU + FPGA	365	1.81
GPU + FPGA	691	15.6
CPU + GPU + FPGA	431	2.06