Is it possible to display the CDP functions in Nsight Systems?

saosudo · August 3, 2021, 6:37am

Is it possible to display the CDP functions (i.e. Call _global_ function from device) in Nsight Systems? Or is it possible to use Nsight Compute to display it?

If it is not possible, please let me know if it is possible to display them in Nsight Compute or other software.

When profiling the CUDA Dynamic Parallelism (CDP) example in NVIDIA Nsight Systems 2021.2.1, the GPU kernel was not displayed.
I used cdpQuadtree as the target for the profile.

github.com

ndd314/cuda_examples/blob/master/6_Advanced/cdpQuadtree/cdpQuadtree.cu

/**
 * Copyright 1993-2013 NVIDIA Corporation.  All rights reserved.
 *
 * Please refer to the NVIDIA end user license agreement (EULA) associated
 * with this source code for terms and conditions that govern your use of
 * this software. Any use, reproduction, disclosure, or distribution of
 * this software and related documentation outside the terms of the EULA
 * is strictly prohibited.
 *
 */

#include <thrust/random.h>
#include <thrust/device_vector.h>
#include <helper_cuda.h>

////////////////////////////////////////////////////////////////////////////////
// A structure of 2D points (structure of arrays).
////////////////////////////////////////////////////////////////////////////////
class Points
{

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hwilper · August 27, 2021, 1:27am

I am sorry that there was no response to this earlier, your forum post was dropped in an orphaned category that the Nsys team was unaware of until this afternoon.

All of the tools that use NVIDIA’s CUPTI library for CUDA trace are unable to trace CDP functions since Volta. Unfortunately this includes both Nsight Systems and Nsight Compute.

saosudo · August 27, 2021, 4:18am

I apologize for posting in the wrong category.
Thank you for your answer.

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Is it possible to display the CDP functions in Nsight Systems?

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