======== NVPROF is profiling pt_solver_profiler...
======== Command: pt_solver_profiler -l../grids/sinsum4.grd -S gpu_fft -n 1 -b periodic
Running 1 iterations of poisson solver (gpu_fft)...
BEGIN 0
size_in_elems: 64
Free memory: 830 MB
END 0
Elapsed time statistics from 1 values (ms.): 87/87/87 +/- 0 (min/avg/max +/- std_dev).
======== Profiling result:
     Start  Duration  Name
    2.31ms    2.00us  cuDeviceGetCount
    2.34ms    1.00us  cuDeviceGet
    2.34ms   27.00us  cuDeviceGetName
    2.37ms   35.00us  cuDeviceTotalMem
    2.41ms    1.00us  cuDeviceGetAttribute
    2.41ms       0ns  cuDeviceGetAttribute
    2.41ms    1.00us  cuDeviceGetAttribute
    2.41ms    1.00us  cuDeviceGetAttribute
    2.41ms    1.00us  cuDeviceGetAttribute
    2.41ms   24.00us  cuDeviceGetAttribute
    2.44ms       0ns  cuDeviceGetAttribute
    2.44ms       0ns  cuDeviceGetAttribute
    2.44ms    1.00us  cuDeviceGetAttribute
    2.44ms       0ns  cuDeviceGetAttribute
    2.44ms    1.00us  cuDeviceGetAttribute
    2.44ms    1.00us  cuDeviceGetAttribute
    2.44ms       0ns  cuDeviceGetAttribute
    2.44ms       0ns  cuDeviceGetAttribute
    2.44ms    1.00us  cuDeviceGetAttribute
    2.44ms       0ns  cuDeviceGetAttribute
    2.44ms    1.00us  cuDeviceGetAttribute
    2.44ms       0ns  cuDeviceGetAttribute
    2.45ms       0ns  cuDeviceGetAttribute
    2.45ms       0ns  cuDeviceGetAttribute
    2.45ms    1.00us  cuDeviceGetAttribute
    2.45ms       0ns  cuDeviceGetAttribute
    2.45ms    1.00us  cuDeviceGetAttribute
    2.45ms       0ns  cuDeviceGetAttribute
    2.45ms       0ns  cuDeviceGetAttribute
    2.45ms       0ns  cuDeviceGetAttribute
    2.45ms    1.00us  cuDeviceGetAttribute
    2.45ms    1.00us  cuDeviceGetAttribute
    2.45ms       0ns  cuDeviceGetAttribute
    2.46ms       0ns  cuDeviceGetAttribute
    2.46ms    1.00us  cuDeviceGetAttribute
    2.46ms       0ns  cuDeviceGetAttribute
    2.46ms    1.00us  cuDeviceGetAttribute
    2.46ms       0ns  cuDeviceGetAttribute
    2.46ms       0ns  cuDeviceGetAttribute
    2.46ms    1.00us  cuDeviceGetAttribute
    2.46ms       0ns  cuDeviceGetAttribute
    2.46ms    1.00us  cuDeviceGetAttribute
    2.46ms       0ns  cuDeviceGetAttribute
    2.46ms       0ns  cuDeviceGetAttribute
    2.46ms       0ns  cuDeviceGetAttribute
    2.46ms    1.00us  cuDeviceGetAttribute
    2.46ms    1.00us  cuDeviceGetAttribute
    2.47ms       0ns  cuDeviceGetAttribute
    2.47ms       0ns  cuDeviceGetAttribute
    2.47ms       0ns  cuDeviceGetAttribute
    2.47ms       0ns  cuDeviceGetAttribute
    2.47ms    1.00us  cuDeviceGetAttribute
    2.47ms       0ns  cuDeviceGetAttribute
    2.47ms       0ns  cuDeviceGetAttribute
    2.47ms       0ns  cuDeviceGetAttribute
    2.47ms  108.00us  cuDeviceGetAttribute
    2.47ms       0ns  cuDeviceGetAttribute
    2.58ms    1.00us  cuDeviceGetAttribute
    2.58ms       0ns  cuDeviceGetAttribute
    2.58ms       0ns  cuDeviceGetAttribute
    2.58ms       0ns  cuDeviceGetAttribute
    2.58ms    1.00us  cuDeviceGetAttribute
    2.59ms    1.00us  cuDeviceGetAttribute
    2.59ms       0ns  cuDeviceGetAttribute
    2.59ms       0ns  cuDeviceGetAttribute
    2.59ms       0ns  cuDeviceGetAttribute
    2.59ms    1.00us  cuDeviceGetAttribute
    2.59ms       0ns  cuDeviceGetAttribute
    2.59ms    1.00us  cuDeviceGetAttribute
    2.59ms       0ns  cuDeviceGetAttribute
    2.59ms       0ns  cuDeviceGetAttribute
    2.59ms    1.00us  cuDeviceGetAttribute
    2.59ms       0ns  cuDeviceGetAttribute
    2.60ms    1.00us  cuDeviceGetAttribute
    2.60ms  108.00us  cuDeviceGetAttribute
    2.71ms       0ns  cuDeviceGetAttribute
    2.72ms    3.00us  cudaGetDeviceCount
    2.73ms   27.00us  cudaGetDeviceProperties
    2.77ms    1.00us  cudaGetDeviceCount
    2.80ms    1.00us  cudaGetDeviceCount
    2.80ms   30.00us  cudaGetDeviceProperties
    2.83ms   26.00us  cudaGetDeviceProperties
    3.08ms    9.00us  cudaSetDevice
    3.09ms   86.25ms  cudaMalloc
   89.35ms       0ns  cuDeviceGet
   89.36ms   47.00us  cuMemGetInfo
   89.41ms  100.00us  cudaMalloc