OpenMP 4.0 Copying partial arrays to the device - weird behavior

Paulius_V_1 — Tue, 12 Jan 2016 17:50:35 GMT

Hello all. I am trying to reduce my offload costs by only copying the data that I need.

!original copy
!$omp target update from(my_array)

!this works
!$omp target update from(1:1000,1)
!$omp target update from(1:1000,2)
!$omp target update from(1:1000,3)



!this doesn't
!$omp target update from(my_array(var1:var2, 1))
!$omp target update from(my_array(var1:var2, 2))
!$omp target update from(my_array(var1:var2, 3))
!starts coping gigabytes(????) of data or just seg faults

Any idea?

This could be an error in the

Rajiv_D_Intel — Wed, 03 Feb 2016 19:37:05 GMT

This could be an error in the source code or a compiler defect.

It is hard to say unless you post a complete executable example.

topic OpenMP 4.0 Copying partial arrays to the device - weird behavior in Software Archive

OpenMP 4.0 Copying partial arrays to the device - weird behavior

This could be an error in the