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listShow Lessons List
  1. What is SYCL
  2. Enqueueing a Kernel
  3. Managing Data
  4. Handling Errors
  5. Device Discovery
  6. Data Parallelism
  7. Introduction to USM
  8. Using USM
  9. Asynchronous Execution
  10. Data and Dependencies
  11. In Order Queue
  12. Advanced Data Flow
  13. Multiple Devices
  14. ND Range Kernels
  15. Image Convolution
  16. Coalesced Global Memory
  17. Vectors
  18. Local Memory Tiling
  19. Further Optimisations
  20. Matrix Transpose
  21. More SYCL Features
  22. Functors
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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.