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Kernel fusion experiments

Executed with

--dimension=3 --max_time_steps=1000 --eps2=0.0019974621629115655 --sigma=3.5306509073075123 --domain_x_begin=-3.14159 --domain_x_end=3.14159 --time_integrator=ode23 --converged_rel_tol=1e-6 --kernel_variant=

with kernel_variant set to 0, 1, or 2.

GPU

nvidia A100

Variant	Evals per second	Speedup Factor
Unfused	3543	-
Fused	6760	1.908x

GTX Titan Black

Variant	Evals per second	Speedup Factor
Unfused	272.1	-
Fused	323.0	1.19x

CPU

AMD Ryzen 9 3900X 12-core CPU, 12 OpenMP threads

Variant	Evals per second	Speedup Factor
Unfused	72.45	-
Fused	130.8	1.806x

Intel(R) Xeon(R) Gold 6242 CPU @ 2.80GHz, 32 OpenMP threads

Variant	Evals per second	Speedup Factor
Unfused	107.59	-
Fused	141.34	1.314x