### libnvToolsExt.so (7)

#### NAME

libcuda.so - The NVIDIA CUDA Driver Library

libcudart.so - The NVIDIA CUDA Runtime Library

libcublas.so - The NVIDIA cuBLAS Library

libcusparse.so - The NVIDIA cuSPARSE Library

libcusolver.so - The NVIDIA cuSOLVER Library

libcufft.so, libcufftw.so - The NVIDIA cuFFT Libraries

libcurand.so - The NVIDIA cuRAND Library

libnppc.so, libnppi.so, libnpps.so - The NVIDIA CUDA NPP Libraries

libnvvm.so - The NVIDIA NVVM Library

libdevice.so - The NVIDIA libdevice Library

libcuinj32.so, libcuinj64.so - The NVIDIA CUINJ Libraries

libnvToolsExt.so - The NVIDIA Tools Extension Library

#### DESCRIPTION

### libcuda.so

The CUDA Driver API library for low-level CUDA programming.

### libcudart.so

The CUDA Runtime API library for high-level CUDA programming, on top of the CUDA Driver API.

### libcublas.so

The cuBLAS library is an implementation of BLAS (Basic Linear Algebra Subprograms) on top of the NVIDIA CUDA runtime. It allows the user to access the computational resources of NVIDIA Graphics Processing Unit (GPU), but does not auto-parallelize across multiple GPUs.

To use the cuBLAS library, the application must allocate the required matrices and vectors in the GPU memory space, fill them with data, call the sequence of desired cuBLAS functions, and then upload the results from the GPU memory space back to the host. The cuBLAS library also provides helper functions for writing and retrieving data from the GPU.

### libcusparse.so

The cuSPARSE library contains a set of basic linear algebra subroutines used for handling sparse matrices. It is implemented on top of the NVIDIA CUDA runtime (which is part of the CUDA Toolkit) and is designed to be called from C and C++. The library routines can be classified into four categories:

* Level 1: operations between a vector in sparse format and a vector in dense format

* Level 2: operations between a matrix in sparse format and a vector in dense format

* Level 3: operations between a matrix in sparse format and a set of vectors in dense format (which can also usually be viewed as a dense tall matrix)

* Conversion: operations that allow conversion between different matrix formats

### libcusolver.so

The cuSOLVER library contains LAPACK-like functions in dense and sparse linear algebra, including linear solver, least-square solver and eigenvalue solver.

### libcufft.so, libcufftw.so

The NVIDIA CUDA Fast Fourier Transform (FFT) product consists of two separate libraries: cuFFT and cuFFTW. The cuFFT library is designed to provide high performance on NVIDIA GPUs. The cuFFTW library is provided as porting tool to enable users of FFTW to start using NVIDIA GPUs with a minimum amount of effort.

The FFT is a divide-and-conquer algorithm for efficiently computing discrete Fourier transforms of complex or real-valued data sets. It is one of the most important and widely used numerical algorithms in computational physics and general signal processing. The cuFFT library provides a simple interface for computing FFTs on an NVIDIA GPU, which allows users to quickly leverage the floating-point power and parallelism of the GPU in a highly optimized and tested FFT library.

### libcurand.so

The cuRAND library provides facilities that focus on the simple and efficient generation of high-quality pseudorandom and quasirandom numbers. A pseudorandom sequence of numbers satisfies most of the statistical properties of a truly random sequence but is generated by a deterministic algorithm. A quasirandom sequence of n-dimensional points is generated by a deterministic algorithm designed to fill an n-dimensional space evenly.

### libnppc.so, libnppi.so, libnpps.so

NVIDIA NPP is a library of functions for performing CUDA accelerated processing. The initial set of functionality in the library focuses on imaging and video processing and is widely applicable for developers in these areas. NPP will evolve over time to encompass more of the compute heavy tasks in a variety of problem domains. The NPP library is written to maximize flexibility, while maintaining high performance.

NPP can be used in one of two ways:

* A stand-alone library for adding GPU acceleration to an application with minimal effort. Using this route allows developers to add GPU acceleration to their applications in a matter of hours.

* A cooperative library for interoperating with a developer’s GPU code efficiently.

Either route allows developers to harness the massive compute resources of NVIDIA GPUs, while simultaneously reducing development times.

### libnvvm.so

The NVVM library is used by NVCC to compile CUDA binary code to run on NVIDIA GPUs.

### libdevice.so

The libdevice library is a collection of NVVM bitcode functions that implement common functions for NVIDIA GPU devices, including math primitives and bit-manipulation functions. These functions are optimized for particular GPU architectures, and are intended to be linked with an NVVM IR module during compilation to PTX.

### libcuinj32.so, libcuinj64.so

The CUDA internal libraries for profiling. Used by nvprof and the Visual Profiler.

### libnvToolsExt.so

The NVIDIA Tools Extension Library.

#### SEE ALSO

#### NOTES

For more information, please see the online documentation at docs.nvidia.com/cuda/index.html

#### COPYRIGHT

©2013 NVIDIA Corporation. All rights reserved.