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→‎Assignment3

==Assignment2==

Let's see how this algorithm works to sortand explanation of several terms.

[[File:BitonicSort1.png]]

Below is the comparison between bitonic sort using GPU, quick sort using CPU, bitonic sort using CPU.

[[File:BitonicGraph.jpg|500px|thumb|left|sorting algorithms comparison result]]

==Assignment3==

cudaMemcpy(HtoD) takes long time.

Use pinned memory instead of pageable memorycudaHostAlloc();

"It will allocate pinned memory which is always stored in RAM and can be accessed by GPU's DMA(direct memory access) directly"

[[File:Resultone.png|500px|thumb|left|pinned memory vs pageable memory]]

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