
Vishal Thumbe contributed to NVIDIA’s TransformerEngine by developing three core features over two months, focusing on deep learning optimization and GPU computing. He implemented FP8 output quantization for GEMM operations, enabling faster and more memory-efficient matrix multiplications with comprehensive end-to-end testing across quantizers and data types using CUDA and C++. Vishal also added SwiGLU activation support, updating CUDA kernels, Python bindings, and test coverage to improve inference throughput and model compatibility. In October, he expanded JAX backend activation support by introducing clamped_silu and clamped_linear activations, ensuring parity with PyTorch and enhancing cross-backend usability for TransformerEngine users.

October 2025 (NVIDIA/TransformerEngine): Expanded JAX backend activation support to mirror PyTorch parity by adding clamped_silu and clamped_linear activations (Clamped SwiGLU). Implemented in the JAX backend with updates to core activation logic and tests, ensuring reliable usage for JAX users and smoother cross-backend porting. Commit reference: b840898b75162bce68fbc3c9c8234b6f23dcdbff.
October 2025 (NVIDIA/TransformerEngine): Expanded JAX backend activation support to mirror PyTorch parity by adding clamped_silu and clamped_linear activations (Clamped SwiGLU). Implemented in the JAX backend with updates to core activation logic and tests, ensuring reliable usage for JAX users and smoother cross-backend porting. Commit reference: b840898b75162bce68fbc3c9c8234b6f23dcdbff.
September 2025: Delivered two core features for NVIDIA/TransformerEngine that drive performance, efficiency, and GPT OSS readiness. FP8 Output Quantization for GEMM enables faster, memory-efficient GEMM operations with comprehensive tests across quantizers and data types. SwiGLU Activation Support for GPT OSS extends activation options with updated CUDA kernels, templates, Python bindings, and tests, including clipping of gate/pre-activation values with a scaled sigmoid. Together, these work items improve inference throughput, reduce energy consumption, and broaden model compatibility in production deployments.
September 2025: Delivered two core features for NVIDIA/TransformerEngine that drive performance, efficiency, and GPT OSS readiness. FP8 Output Quantization for GEMM enables faster, memory-efficient GEMM operations with comprehensive tests across quantizers and data types. SwiGLU Activation Support for GPT OSS extends activation options with updated CUDA kernels, templates, Python bindings, and tests, including clipping of gate/pre-activation values with a scaled sigmoid. Together, these work items improve inference throughput, reduce energy consumption, and broaden model compatibility in production deployments.
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