Nsight Compute 2025.3 - New Features

Improved the charts in the Compute Workload Analysis section to better distinguish between per_cycle_active and per_cycle_elapsed metrics.

Fixed an issue where kernels using the compile-time attribute __block_size__ were launched with incorrect grid dimensions.
Fixed an issue with timline y-axis labels being showing unexpected units for small max values.
Fixed a crash when stepping applications in interactive profiling mode.
Fix that roofline charts missed showing achived value data in some cases.
Fixed that duplicated tooltips could be shown for some links in the Memory Chart.
Fixed a potential hang when setting --pm-sampling-buffer-size to very large values.
Fixed several rules to not show non-actionable warnings for unsupported, missing metrics when profiling on mobile chips.

Added support for CUDA 13.0.
Added or improved support for Blackwell chips.
Removed support for Volta chips.
For Green Context launches, launch__waves_per_multiprocessor is now scaled to the number of SMs in the Green Context.
Added support for profiling individual nodes of device-launchable CUDA graphs launched from the host.
Added metric launch__persisting_l2_cache_size to the Memory Workload Analysis section.
Removed metric profiler__pmsampler_dropped_samples.
Added support for not importing SASS cubins into the report.

The Source page now shows the instruction category in SASS and the instruction mix for high-level source.
Added a new instruction mix and scoreboard dependencies table to the Source page.
Added improved tooltips to the memory chart.
Added information on the GPC Constant Cache (GCC) and DSMEM atomics in the memory tables.
The Metric Details tool window now shows the breakdown for throughput metrics.
Added support for searching web forum and rule results.
Multiple results from the same search source are now combined to make the output more readable.
Improved the occupancy calculator.

Added the option -forward-signals to transparently forward signals to the profiled application.

Fixed that some ncu console messages were truncated after 1024 characters.
Fixed some display issues related to Green Context tables.
Improved the performance of remote profiling in application replay mode.
Fixed a hang in certain scenarios when profiling dependent kernels with device-mapped host allocations.
Fixed missing correlation between JIT-compiled PTX to SASS in some situations.
Fixed an error when profiling a CUDA graph kernel node doing a cluster launch on driver 580 or newer.

For a complete overview of all NVIDIA® Nsight™ Compute features and access to resources, please visit the main Nsight™ Compute page.

NVIDIA® Nsight™ Compute 2025.3 is available for download under the NVIDIA Registered Developer Program.