---
title: compilationDescriptor
framework: metalperformanceshadersgraph
role: symbol
role_heading: Instance Property
path: metalperformanceshadersgraph/mpsgraphexecutiondescriptor/compilationdescriptor
---

# compilationDescriptor

The compilation descriptor for the graph.

## Declaration

```swift
@NSCopying var compilationDescriptor: MPSGraphCompilationDescriptor? { get set }
```

## Discussion

Discussion Default value is nil.