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- What is SYCL
- Enqueueing a Kernel
- Managing Data
- Handling Errors
- Device Discovery
- Data Parallelism
- Introduction to USM
- Using USM
- Asynchronous Execution
- Data and Dependencies
- In Order Queue
- Advanced Data Flow
- Multiple Devices
- ND Range Kernels
- Image Convolution
- Coalesced Global Memory
- Vectors
- Local Memory Tiling
- Further Optimisations
- Matrix Transpose
- More SYCL Features
- Functors
Handling Errors
In this exercise you will learn how to handle synchronous and asynchronous exceptions.
1.) Catch synchronous exception handling
Synchronous errors, such as failure to construct an object, are reported immediately by the runtime throwing an exception.
To catch synchronous exceptions simply wrap your application in a try catch
block and catch a SYCL exception
and print out the error message provided by
the what
member function.
2. ) Catch and asynchronous exceptions
Asynchronous errors, such as an error occurring during execution of a kernel on a device, are reported via user-supplied asynchronous error-handlers.
To catch asynchronous exceptions create an async handler using a lambda
expression which takes an exception_list
, iterates over it and rethrows the
exceptions to be caught by the surrounding try-catch block.
Build And Execution Hints
For DevCloud via JupiterLab follow these instructions.
For DPC++: instructions.
For AdaptiveCpp: instructions.