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Work around ifx automatic-offloading bugs #145

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merged 2 commits into from
May 8, 2024
Merged

Work around ifx automatic-offloading bugs #145

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e71793d
test(trainable_engine): reduce iterations with ifx
Apr 16, 2024
17066e4
build(ifx): work around GPU offload ICE
Apr 16, 2024
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15 changes: 15 additions & 0 deletions src/inference_engine/inference_engine_s.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -308,11 +308,26 @@ function get_key_value(line) result(value_)
difference%nodes_difference_(l) = self%nodes_(l) - rhs%nodes_(l)

associate(n => self%nodes_)
#ifndef __INTEL_COMPILER
do concurrent(l = 1:ubound(n,1))
difference%weights_difference_(1:n(l),1:n(l-1),l) = self%weights_(1:n(l),1:n(l-1),l) - rhs%weights_(1:n(l),1:n(l-1),l)
difference%biases_difference_(1:n(l),l) = self%biases_(1:n(l),l) - rhs%biases_(1:n(l),l)
difference%nodes_difference_(l) = self%nodes_(l) - rhs%nodes_(l)
end do
#else
block
integer j, k
do l = 1, ubound(n,1)
do j = 1, n(l)
do k = 1, n(l-1)
difference%weights_difference_(j,k,l) = self%weights_(j,k,l) - rhs%weights_(j,k,l)
difference%biases_difference_(j,l) = self%biases_(j,l) - rhs%biases_(j,l)
difference%nodes_difference_(l) = self%nodes_(l) - rhs%nodes_(l)
end do
end do
end do
end block
#endif
end associate

end block
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2 changes: 1 addition & 1 deletion test/trainable_engine_test_m.F90
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Expand Up @@ -286,7 +286,7 @@ function xor_gate_with_random_weights() result(test_passes)
!! Depending on where in the random-number sequence the weights start, this test can pass for lower
!! numbers of iterations, e.g., 400000. Using more iterations gives more robust convergence.
#else
integer, parameter :: num_inputs=2, mini_batch_size = 1, num_iterations=52219
integer, parameter :: num_inputs=2, mini_batch_size = 1, num_iterations=49000
!! Reducing num_iterations yields a less robust test, but increasing num_iterations causes this
!! test to crash when compiled with the Intel ifx compiler.
#endif
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