# Package org.apache.sysds.runtime.instructions.gpu.context

Interface Summary
GPUMemoryAllocator

Class Summary
CSRPointer: Compressed Sparse Row (CSR) format for CUDA Generalized matrix multiply is implemented for CSR format in the cuSparse library among other operations Since we assume that the matrix is stored with zero-based indexing (i.e.
CudaMemoryAllocator
ExecutionConfig: Java Wrapper to specify CUDA execution configuration for launching custom kernels
GPUContext: Represents a context per GPU accessible through the same JVM.
GPUContextPool
GPULazyCudaFreeMemoryManager
GPUMatrixMemoryManager
GPUMemoryEviction
GPUMemoryManager: - All cudaFree and cudaMalloc in SystemDS should go through this class to avoid OOM or incorrect results.
GPUMemoryManager.EvictionPolicyBasedComparator: Class that governs the eviction policy
GPUObject: Handle to a matrix block on the GPU
JCudaKernels
ShadowBuffer
UnifiedMemoryAllocator