Switch to cuda native #169

Job	Run time
heffte (cmake, BUILTIN, cpu_intel)	2m 3s
heffte (cmake, BUILTIN, cpu_intel)	1m 56s
heffte (cmake, BUILTIN, cpu_intel)	1m 56s
heffte (cmake, FFTW, cpu_intel)	3m 6s
heffte (cmake, FFTW, cpu_intel)	3m 6s
heffte (cmake, FFTW, cpu_intel)	3m 6s
heffte (cmake, MKL, cpu_intel)	6m 16s
heffte (cmake, MKL, cpu_intel)	6m 16s
heffte (cmake, MKL, cpu_intel)	6m 16s
heffte (spack, BUILTIN, cpu_intel)	15m 59s
heffte (spack, BUILTIN, cpu_intel)	15m 59s
heffte (spack, BUILTIN, cpu_intel)	16m 38s
heffte (spack, FFTW, cpu_intel)	17m 8s
heffte (spack, FFTW, cpu_intel)	17m 8s
heffte (spack, FFTW, cpu_intel)	17m 8s
heffte (spack, MKL, cpu_intel)	12m 29s
heffte (spack, MKL, cpu_intel)	12m 29s
heffte (spack, MKL, cpu_intel)	12m 29s
heffte (cmake, ONEAPI, gpu_intel)	2m 17s
heffte (cmake, ONEAPI, gpu_intel)	2m 17s
heffte (cmake, ONEAPI, gpu_intel)	2m 17s
heffte (cmake, CUDA, gpu_nvidia)	7m 21s
heffte (cmake, CUDA, gpu_nvidia)	7m 21s
heffte (cmake, CUDA, gpu_nvidia)	7m 21s
heffte (spack, CUDA, gpu_nvidia)	16m 51s
heffte (spack, CUDA, gpu_nvidia)	16m 51s
heffte (spack, CUDA, gpu_nvidia)	16m 51s
heffte (cmake, ROCM, gpu_amd)	1m 41s
heffte (cmake, ROCM, gpu_amd)	1m 41s
heffte (cmake, ROCM, gpu_amd)	1m 41s
	4h 15m 58s

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