After realizing the cudaMemcpy was took and cudaMalloc takes quite a bit of time, we focused our efforts on optimizing it.It was difficult to find a solution because the initial copy always takes a bit of timeto set up.<br>

cadaMallocHost cudaMallocHost will allocate pinned memory which is stored in RAM and can be accessed by the GPU's DMA directly.

Here is we can see where an error occurs and onward where , we suspect that a memory leak causes the problem resulting in an error in pi calculation