GPUMemoryAllocator (Apache SystemDS 3.2.0-SNAPSHOT API)

All Known Implementing Classes:

CudaMemoryAllocator, UnifiedMemoryAllocator
```
public interface GPUMemoryAllocator
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`allocate(jcuda.Pointer devPtr, long size)`	Allocate memory on the device.
`boolean`	`canAllocate(long size)`	Check if there is enough memory to allocate a pointer of given size
`void`	`free(jcuda.Pointer devPtr)`	Frees memory on the device
`long`	`getAvailableMemory()`	Gets the available memory on GPU that SystemDS can use.

- Method Detail
  - allocate
```
void allocate(jcuda.Pointer devPtr,
              long size)
```
    Allocate memory on the device.
    
    Parameters:
    
    devPtr - Pointer to allocated device memory
    
    size - size in bytes
    
    Throws:
    
    jcuda.CudaException - if unable to allocate
  - free
```
void free(jcuda.Pointer devPtr)
   throws jcuda.CudaException
```
    Frees memory on the device
    
    Parameters:
    
    devPtr - Device pointer to memory to free
    
    Throws:
    
    jcuda.CudaException - if error occurs
  - canAllocate
```
boolean canAllocate(long size)
```
    Check if there is enough memory to allocate a pointer of given size
    
    Parameters:
    
    size - size in bytes
    
    Returns:
    
    true if there is enough available memory to allocate a pointer of the given size
  - getAvailableMemory
```
long getAvailableMemory()
```
    Gets the available memory on GPU that SystemDS can use.
    
    Returns:
    
    the available memory in bytes