Performance improvements#
Instant-submission mode enabled by default when building with AdaptiveCpp#
In GROMACS 2024, one had to manually enable the instant-submission mode
of AdaptiveCpp when building GROMACS
(-DSYCL_CXX_FLAGS_EXTRA=-DHIPSYCL_ALLOW_INSTANT_SUBMISSION=1
).
Now it is enabled by default, improving performance by up to 20%
when running on GPU and slightly reducing the CPU usage when using
SYCL/AdaptiveCpp backend.