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

- Interface Summary
  Interface | Description
  --- | ---
  GPUMemoryAllocator |

- Class Summary
  Class | Description
  --- | ---
  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 |
  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 |

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