Public bug reported:
$cat prod.f90
program main
implicit none
integer, parameter :: sp = selected_real_kind(6,37)
integer, parameter :: n = 4096
real(sp), allocatable :: a(:), b(:), c(:), c2(:)
integer :: i
allocate( a(n), b(n), c(n) )
c = 0._sp
call random_number(a)
call random_number(b)
!$omp target teams map(to: a, b) map(from: c)
!$omp distribute parallel do
do i = 1, n
c(i) = a(i)*b(i)
end do
!$omp end target teams
c2 = a*b
print*, maxval( abs(c2-c) )
end program
$ gfortran -O3 -flto -fopenmp -foffload=nvptx-none prod.f90 -o test.x
/usr/bin/ld: /tmp/ccyvMF16.crtoffloadtable.o: warning: relocation against
`__offload_vars_end' in read-only section `.rodata'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
Ubuntu 20.10 x86_64
Xeon E3-1505m-v6
Nvidia Quadro M2200
That doesn't happen on Ubuntu 20.04
** Affects: gcc-10 (Ubuntu)
Importance: Undecided
Status: New
** Tags: offloading openmp
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https://bugs.launchpad.net/bugs/1907812
Title:
Can't build simple OpenMP offloading programs on Ubuntu 20.10
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