# Apply for the NVTX for Device Code Closed Beta

Apply for early access to NVTX for Device Code (NVTXD), a device-side annotation API for NVIDIA Nsight Compute.

NVTXD helps NVIDIA CUDA™ developers add markers and ranges inside GPU kernels and visualize user-defined execution phases in NVIDIA Nsight Compute. Participation in the closed beta is limited, and applications are reviewed individually.

## Benefits  

 ![Pencil icon.](https://brand-assets.cne.ngc.nvidia.com/assets/marketing-icons/2.4.2/employee-resource-center.svg)
### See Kernel Phases  

Add markers and ranges inside GPU kernels and visualize user-defined execution phases in Nsight Compute.

 ![Pencil icon.](https://brand-assets.cne.ngc.nvidia.com/assets/marketing-icons/2.4.2/deep-learning-institute-talks-training.svg)
### Evaluate Early  

Explore NVTXD during the closed beta on relevant CUDA workloads.

 ![Pencil icon.](https://brand-assets.cne.ngc.nvidia.com/assets/marketing-icons/2.4.2/document-support-guide-1.svg)
### Shape NVTXD  

Share practical feedback with NVIDIA based on the kernels and workflows you care about.

 ![Pencil icon.](https://brand-assets.cne.ngc.nvidia.com/assets/marketing-icons/2.4.2/community-giving-2-financial.svg)
### Access Private Resources  

Get member-only onboarding materials and closed-beta resources after approval.

## Who Should Apply?  

This closed beta is intended for developers who meet the criteria below.

### CUDA Development  

You actively develop, profile, and/or optimize CUDA kernels.

### Nsight Compute  

You use or plan to use NVIDIA Nsight Compute for kernel performance analysis.

### Relevant Use Case  

You want visibility into user-defined phases or events inside GPU kernels.

### Product Feedback  

You can evaluate prerelease technology and share actionable feedback with NVIDIA.