`cublasLt64_11.dll` is a dynamic link library (DLL) associated with NVIDIA's CUDA (Compute Unified Device Architecture) platform. CUDA is a parallel computing platform and programming model developed by NVIDIA that allows developers to use NVIDIA GPUs for general purpose processing (often referred to as GPGPU, General-Purpose computing on Graphics Processing Units).
The portion "cublas" in the DLL's name refers to CUDA BLAS, or Basic Linear Algebra Subprograms. BLAS is a collection of low-level linear algebra routines that provide foundational building blocks for performing basic vector and matrix operations. In the context of CUDA, cuBLAS is a GPU-accelerated version of BLAS, optimized for performance on NVIDIA GPUs.
Now, "Lt" in `cublasLt64_11.dll` stands for "Light," indicating this is a variant of the cuBLAS library that may be tailored or streamlined for specific use cases or platforms. The number "11" in the filename typically denotes the version of the CUDA toolkit with which the DLL is associated, suggesting it's from CUDA version 11.
As with any DLL, this file contains compiled code that software applications can call upon. Specifically, software that wishes to perform linear algebra operations on an NVIDIA GPU might rely on this library. If the DLL is missing, corrupted, or incompatible with a particular application or system, it could lead to errors or malfunctions in the software using it. Addressing any issues typically involves ensuring the correct version of the CUDA toolkit is installed or that applications requiring it are compatible with the DLL's version.
