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* Support kernel files with extensions of any length (like .hip)

* Do not allow to replace symbols in single-line comments

* Add OPENMM_BUILD_COMMON CMake option

It allows to build and install common platform files even if
CUDA or OpenCL platforms are not built.
This is required for HIP platform (openmm-hip) if ROCm OpenCL
packages are not installed.

* Add an option for Python wrapper to install into user packages

OPENMM_PYTHON_USER_INSTALL is OFF be default.

* Support FFT backends in Amoeba plugin

The HIP platform supports FFT backends, this commit moves
findLegalFFTDimension to ComputeContext, so platforms can have their own
implementations.

* Compatibility for common platform w/ new HIP platform

* Do not use volatile with private and local AtomData parameters on HIP

The generated code is not optimal, for example, the compiler generates
flat_load instructions instead of ds_read.

* Tune launch bounds for PME grid-related kernels and add WA for RDNA

Force the compiler to use all registers for gridSpreadCharge and
gridInterpolateForce by limiting max waves per EU to 1 on CDNA GPUs,
RDNA GPUs work better without it.

* Optimize atom data structs in GBSA and Amoeba on HIP

Manually rearrange fields, add paddings and force alignments to
have faster accesses to shared memory: ds_read and ds_write may
work slower if addresses are not aligned by 16 bytes.
Co-authored-by: Anton Gorenko <anton@streamhpc.com>
Co-authored-by: Nick Curtis <nicholas.curtis@amd.com>

* Use PocketFFT instead of FFTW

* Minor cleanup

* Use PocketFFT instead of fftpack for reference platform

* Remove FFTW as a dependency

* Converted a test case to use PocketFFT

* Fixed an incorrect comment

* add fix to Prevent Windows from defining macros that interfere with other code

* add fix to the tippy top of the file

Without this fix, we see cases in which not all work-items in a thread group end up hitting the same number of barriers, which leads to a hang in OpenCL GPU execution.

* Added FAQ links to error messages

* Added missing Windows export

* Vectorize NonbondedForce with no cutoff

* Vectorize CustomNonbondedForce with no cutoff

* Memory efficient dense neighbor list

* Fixed errors

* Began vectorizing CustomNonbondedForce

* Refactored CpuCustomNonbondedForce to support multiple vector sizes

* AVX implementation of CpuCustomNonbondedForce

* Fixed compilation errors

It allows to use a faster float-to-int64 in the HIP platform.

* Minor optimizations to computing single pairs

* Adjusted MAX_BITS_FOR_PAIRS on Ampere

* DrudeLangevinIntegrator has getSystemTemperature()

* DrudeNoseHooverIntegrator has getSystemTemperature()

* StateDataReporter reports system temperature for Drude systems

* Fixed incorrect return type

* Reference implementation of computed values for CustomNonbondedForce

* CPU implementation of computed values for CustomNonbondedForce

* Common implementation of computed values for CustomNonbondedForce

* Serialization of computed values

* ForceField supports computed values

* Fixed potential invalid memory access

* Fixed exception

* Optimized CudaSort for non-uniformly distributed data

* Optimized OpenCLSort for non-uniformly distributed data

* Further tuned distributing elements between buckets

* Copied optimizations over to OpenCL

* Use multiple streams to broadcast positions

* Use multiple streams to reduce forces

* Adds sync between default stream and peer-copy

* Minor cleanup
Co-authored-by: David Clark <daclark@nvidia.com>

* updateParametersInContext() can change tabulated functions

* Fixed error in building C wrappers

* updateParametersInContext() can change tabulated functions for CustomCentroidBondForce

* CustomNonbondedForce can update tabulated functions

* CustomGBForce can update tabulated functions

* CustomManyParticleForce can update tabulated functions

* CustomHbondForce can update tabulated functions

* Created MonteCarloFlexibleBarostat

* Improved test cases

* Documentation for MonteCarloFlexibleBarostat

* Added a missing include

* Serialization for MonteCarloFlexibleBarostat

* Added MonteCarloFlexibleBarostat to C++ API docs index

* Added citation for MonteCarloFlexibleBarostat

* Further optimization to updating long range correction

* Bug fix

* Use cuCtxPushCurrent() and cuCtxPopCurrent() for selecting CUDA context

* Fixed errors in amoeba coda

* Fixed more errors in context selection