trueno-cupti: CUDA Profiling for ComputeBrick Analysis

Rust bindings for NVIDIA CUPTI (CUDA Profiling Tools Interface). Enables detailed GPU profiling for cbtop visualization.

Features

• Activity Tracing: Kernel execution, memory copies, synchronization
• Metrics Collection: SM utilization, warp occupancy, memory throughput
• Callback API: Real-time notifications of CUDA operations
• PC Sampling: Instruction-level performance analysis

Example

use trueno_cupti::{Profiler, ActivityKind};

let profiler = Profiler::new()?;
profiler.enable(ActivityKind::Kernel)?;
profiler.enable(ActivityKind::MemoryCopy)?;

// Run CUDA workload...

let records = profiler.flush()?;
for record in records {
    println!("{}: {} ns", record.name, record.duration_ns);
}

Hardware Requirements

• NVIDIA GPU (Compute Capability 3.0+)
• CUDA Toolkit 11.0+ with CUPTI
• Linux (primary), Windows (experimental)