BitFields are:
- Stored in memory using a contiguous buffer of bits.
- Accessible via portals, a la ArrayHandle.
- Portals operate on individual bits or words.
- Operations may be atomic for safe use from concurrent kernels.
The new BitFieldToUnorderedSet device algorithm produces an ArrayHandle
containing the indices of all set bits, in no particular order.
The new AtomicInterface classes provide an abstraction into bitwise
atomic operations across control and execution environments and are used
to implement the BitPortals.
18f3b0dcc Document all the free functions for VariantArrayHandle
5180d6a73 DynamicCellSet has the same free function support as VariantArrayHandle
8f545662d CellSet uses NewInstance to be consistent with the rest of VTK-m
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Sujin Philip <sujin.philip@kitware.com>
Merge-request: !1620
566e220ea Suppress dashboard warnings
f20d7e788 Document the changes that are part of this MR.
f78e763be Add CellLocatorGeneral
c6bead838 Rename CellLocatorTwoLevelUniformGrid to CellLocatorUniformBins
ee838b829 Stylistic changes to CellLocators to match VTK-m
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !1615
A general purpose `CellLocator` that should work with any type of dataset.
Internally, it tries to chose one of the existing cell locators that would be
optimal for the input data.
Also removes `CellLocatorHelper`.
When a library requires reading some command line arguments through a
function like Initialize, it is typical that it will parse through
arguments it supports and then remove those arguments from argc and argv
so that the remaining arguments can be parsed by the calling program.
VTK-m's initialize did not do that, so add that functionality.
The RuntimeDeviceTracker had grown organically to handle multiple
different roles inside VTK-m. Now that we have device tags
that can be passed around at runtime, large portions of
the RuntimeDeviceTracker API aren't needed.
Additionally the RuntimeDeviceTracker had a dependency on knowing
the names of each device, and this wasn't possible
as that information was part of its self. Now we have moved that
information into RuntimeDeviceInformation and have broken
the recursion.
e1f5c4dd9 Modify VariantAH::AsVirtual to cast to new ValueType if needed.
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !1585
E.g:
```
ArrayHandle<Float64> doubleArray;
VariantArrayHandle varHandle{doubleArray};
ArrayHandleVirtual<Float32> = varHandle.AsVirtual<Float32>();
```
If there is a loss in range and/or precision, a warning is logged. If
the ValueTypes are Vecs with mismatched widths, an ErrorBadType is thrown.
Internally, an ArrayHandleCast is used between the VariantArrayHandle's
stored array and the ArrayHandleVirtual.
546a1d14a VariantArrayHandle should report run time NumberOfComponents
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !1586
3868a5b30 Remove the commented out stack code.
e7066ad94 compiler errors.
de7d9cc27 fix compile errors, remove cudastack hacks.
9b9742f43 Merge branch 'no-recurse-bih' of https://gitlab.kitware.com/kmorel/vtk-m into gridEval
ab9d0fad2 Remove warning exceptions for BoundingIntervalHierarchy recursive calls
8127093a2 Add CellLocator to name of BoundingIntervalHierarchy
c008df90c Non-recursive method to find cells in BoundingIntervalHierarchyExec
c463bbec9 Add parent index to BIH tree
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Kenneth Moreland <kmorel@sandia.gov>
Merge-request: !1536
Query and report number of components at runtime so that it can work with
arrays of types with runtime varying number of components
Eg. ArrayHandleGroupVecVariable.
The timer test would blindly wait for an expected interval each time.
However, in a busy system that might wait more than expected, this extra
wait time can accumulate. Fix the issue by monitoring how much time has
actually elapsed and only wait to the next expected point. Also add a
check to make sure that we have not waited too long (and adjust the
error message to hopefully make it more clear that the system waited
more than expected).
db0f5c31b Add a Transfer object for ArrayHandleVirtual
99cb10b9a Fix warnings about override keyword
0ff83e94b Properly handle conditions when VirtualStorage is null
0571c6335 Add missing allocation methods to ArrayHandleVirtual
68b2e5e65 Add move constructors to ArrayHandle subclasses
0b32831af Make ArrayHandleVirtual conform with other ArrayHandle structure
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !1557
Previously, UnitTestTimer paused for 1 second each time it wanted to
test that the timer did (or didn't) record the time elapsing. This was
done 3 times per test and tested seperately on (currently) 5 devices.
The accumulated 15 seconds is not a whole lot, but it can add up when
coupled with the well over 300 other tests.
This change moves from the POSIX sleep function (which is limited to
increments of 1 second) to the updated C++ thread/chrono classes. The
amount of time to wait each time is now 0.25 seconds, which should speed
the test up by 4 times. The risk is that the shorter wait times can
throw off the results if the computer being run on is busy. If that is
the case, we can bump up the wait time (perhaps to 0.5 seconds).
Previously, ArrayHandleVirtual was defined as a specialization of
ArrayHandle with the virtual storage tag. This was because the storage
object was polymorphic and needed to be handled special. These changes
moved the existing storage definition to an internal class, and then
managed the pointer to that implementation class in a Storage object
that can be managed like any other storage object.
Also moved the implementation of StorageAny into the implementation of
the internal storage object.
6797c6e33 Specify return type for GetTimerImpl
25f3432b1 Increase the conditions on which Timer is tested
4d9ce2488 Synchronize CUDA timer when stopping it
85265a9c8 Add const correctness to Timer
465508993 Allow resetting Timer with a new device
dd4a93952 Enable initializing Timer with a DeviceAdapterId
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Haocheng LIU <haocheng.liu@kitware.com>
Merge-request: !1562
UnitTestTimer was changed to be initialized across all possible devices
and getting times across all possible devices. Also test all possible
ways to set the device in the Timer.
The timer class now is asynchronous and device independent. it's using an
similiar API as vtkOpenGLRenderTimer with Start(), Stop(), Reset(), Ready(),
and GetElapsedTime() function. For convenience and backward compability, Each
Start() function call will call Reset() internally and each GetElapsedTime()
function call will call Stop() function if it hasn't been called yet for keeping
backward compatibility purpose.
Bascially it can be used in two modes:
* Create a Timer without any device info. vtkm::cont::Timer time;
* It would enable timers for all enabled devices on the machine. Users can get a
specific elapsed time by passing a device id into the GetElapsedtime function.
If no device is provided, it would pick the maximum of all timer results - the
logic behind this decision is that if cuda is disabled, openmp, serial and tbb
roughly give the same results; if cuda is enabled it's safe to return the
maximum elapsed time since users are more interested in the device execution
time rather than the kernal launch time. The Ready function can be handy here
to query the status of the timer.
* Create a Timer with a device id. vtkm::cont::Timer time((vtkm::cont::DeviceAdapterTagCuda()));
* It works as the old timer that times for a specific device id.
`vtkm::cont::testing` now initializes with logging enabled and support
for device being passed on the command line, `vtkm::testing` only
enables logging.
When you call VariantArrayHandle::CastAndCall, it now tries both basic
storage and virtual storage. You can modify the types of storages tried
by giving a type list of storage tags as the first argument.
Previously you had to exactly match the case of a device adapter's name to
construct it, which was a source of lots of problems ( OpenMP versus OPENMP, CUDA or Cuda ).
Now `vtkm::cont::make_DeviceAdapterId` and `vtkm::cont::RuntimeDeviceTracker` support
case-insensitive device construction.
