Run 3 opencl devices at once

Hello,can someone tell me,how do i run this:


Device #1: Intel(R) UHD Graphics Coffee Lake Halo GT2, skipped.

OpenCL Platform #2: NVIDIA Corporation
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* Device #2: GeForce GTX 1050, 1010/4040 MB allocatable, 5MCU

OpenCL Platform #3: Intel(R) Corporation
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* Device #3: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, skipped.

OpenCL Platform #4: Intel(R) Corporation
========================================
* Device #4: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, skipped.

OpenCL Platform #5: The pocl project
====================================
* Device #5: pthread-Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, skipped.

Thanks!