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multithread add operation in kernel 'renderCUDA_count' #24

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humphryey131 opened this issue Mar 28, 2024 · 1 comment
Open

multithread add operation in kernel 'renderCUDA_count' #24

humphryey131 opened this issue Mar 28, 2024 · 1 comment

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@humphryey131
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Hi guys, I am wondering if the following accumulation in renderCUDA_count kernel shall use atomic operation :
image
As far as I know, the collected_id[j] in different parallel threads may run into idential value. Thanks.
@linwk20
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linwk20 commented Apr 25, 2024

I also found this problem, did you try atomicAdd(&gaussian_count[collected_id[j]], 1);?
Will it be very slow?

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@linwk20 @humphryey131