Skip to content

Latest commit

 

History

History
67 lines (48 loc) · 2.32 KB

README.md

File metadata and controls

67 lines (48 loc) · 2.32 KB
Raw

SYCL Academy

Exercise 7: USM Selector

In this exercise you will learn how to find a suitable device for using the USM data management model.

1.) Create a device selector

Create a custom device selector as you did in exercise 5.

2.) Check for USM support

Within this device selector check for whether the device being inspected has support for the USM device allocations.

This can be querying for the aspect::usm_device_allocations aspect.

3.) Create a queue

Once you have a device selector which will choose a device which supports USM create a queue using it to select its device, remember to handle errors.

Build And Execution Hints

For For DPC++ (using the Intel DevCloud):

clang++ -fsycl -o sycl-ex-7 -I../External/Catch2/single_include ../Code_Exercises/Exercise_07_USM_Selector/source.cpp

In Intel DevCloud, to run computational applications, you will submit jobs to a queue for execution on compute nodes, especially some features like longer walltime and multi-node computation is only abvailable through the job queue. Please refer to the guide.

So wrap the binary into a script job_submission and run:

qsub job_submission

For ComputeCpp:

cmake -DSYCL_ACADEMY_USE_COMPUTECPP=ON -DSYCL_ACADEMY_INSTALL_ROOT=/insert/path/to/computecpp ..
make exercise_07_usm_selector_source
./Code_Exercises/Exercise_07_USM_Selector/exercise_07_usm_selector_source

For hipSYCL:

# <target specification> is a list of backends and devices to target, for example
# "omp;hip:gfx900,gfx906" compiles for CPUs with the OpenMP backend and for AMD Vega 10 (gfx900) and Vega 20 (gfx906) GPUs using the HIP backend.
# The simplest target specification is "omp" which compiles for CPUs using the OpenMP backend.
cmake -DSYCL_ACADEMY_USE_HIPSYCL=ON -DSYCL_ACADEMY_INSTALL_ROOT=/insert/path/to/hipsycl -DHIPSYCL_TARGETS="<target specification>" ..
make exercise_07_usm_selector_source
./Code_Exercises/Exercise_07_USM_Selector/exercise_07_usm_selector_source

alternatively, without cmake:

cd Code_Exercises/Exercise_07_USM_Selector
/path/to/hipsycl/bin/syclcc -o sycl-ex-7 -I../../External/Catch2/single_include --hipsycl-targets="<target specification>" source.cpp
./sycl-ex-7