Kokkos 4 switches from their interal library based off of desul to using desul directly.
This removes VTK-m's dependency on the Kokkos internal implementation (Kokkos::Impl) to
using desul directly.
This filter takes a `DataSet` and returns a point cloud representation that
has a vertex cell associated with each point in it. This is useful for
filling in a `CellSet` for data that has points but no cells. It is also
useful for operations in which you want to throw away the cell geometry and
operate on the data as a collection of disparate points.
Although the contour filter was recently divided into 2 filters, flying
edges and marching cubes, the marching cubes version still had many
conditions and was the file that took the longest to compile on Frontier.
To help speed up parallel compiles and prevent a single run of a
compiler from being overwhelmed, the compilation of all the marching
cubes conditions has been split up using instantiations.
There are occasions when you need a worklet to opeate on 2D or 3D
indices. Most worklets operate on 1D indices, which requires recomputing
the 3D index in each worklet instance. A workaround is to use a worklet
that does a 3D scheduling and pull the working index from that.
The problem was that there was no easy way to get this 3D index. To
provide this option, a feature was added to the `BoundaryState` class
that can be provided by `WorkletPointNeighborhood`.
Thus, to get a 3D index in a worklet, use the
`WorkletPointNeighborhood`, add `Boundary` as an argument to the
`ExecutionSignature`, and then call `GetCenterIndex` on the
`BoundaryState` object passed to the worklet operator.
The file `ArrayRangeCompute.cxx` was taking a long time to compile with
some device compilers. This is because it precompiles the range computation
for many types of array structures. It thus compiled the same operation
many times over.
The new implementation compiles just as many cases. However, the
compilation is split into many different translation units using the
instantiations feature of VTK-m's configuration. Although this rarely
reduces the overall CPU time spent during compiling, it prevents parallel
compiles from waiting for this one build to complete. It also avoids
potential issues with compilers running out of resources as it tries to
build a monolithic file.
Previously, the `ComputeMoments` filter only operated on a finite set of
array types as its input field. This included a prescribed list of `Vec`
sizes for the input. The filter has been updated to use more generic
interfaces to the field's array (and float fallback) to enable the
computation of moments on any type of scalar field.
The internal array copy has an optimization to use the device the array
exists on to do the copy. However, if that device is disabled the copy
would fail. This problem has been fixed.
The `FilterField` class provides convenience functions for subclasses to
determine the `ArrayHandle` type for scalar and vector fields. However, you
needed to know the specific size of vectors. For filters that support an
input field of any type, a new form, `CastAndCallVariableVecField` has been
added. This calls the underlying functor with an `ArrayHandleRecombineVec`
of the appropriate component type.
The `CastAndaCallVariableVecField` method also reduces the number of
instances created by having a float fallback for any component type that
does not satisfy the field types.
The legacy VTK file reader previously only supported a specific set of Vec
lengths (i.e., 1, 2, 3, 4, 6, and 9). This is because a basic array
handle has to have the vec length compiled in. However, the new
`ArrayHandleRuntimeVec` feature is capable of reading in any vec-length
and can be leveraged to read in arbitrarily sized vectors in field
arrays.
There was an error in `operator-=` for `IteratorFromArrayPortal` that went
by unnoticed. The operator is fixed and regression tests for the operators
has been added.
`UnknownArrayHandle` is supposed to treat `ArrayHandleRuntimeVec` the
same as `ArrayHandleBasic`. However, the `NewInstance` methods were
failing because they need custom handling of the vec size.
In addition to using uniform coordinates, the ContourFlyingEdges filter can now process any type of coordinate system, making the filter use Flying Edges in more cases
In order to compile the contour filter more efficiently, we split the contour filter into two separate translation units, corresponding to the new filters ContourFlyingEdges and ContourMarchingCells. The API for Contour filter is left totally unchanged, and tries to use flying edges if the dataset is structured and uniform.
All three contour filters inherit from the `AbstractContour` class, providing utility methods used in the implementations.
Previously, tetrahedralize/triangulate would blindly convert all the cells to tetrahedra/triangles, even when they were already. Now, the dataset is directly returned if the CellSet is a CellSetSingleType of tetras/triangles, and no further processing is done in the worklets for CellSetExplicit when all shapes are tetras or triangles.
I've been seeing errors in a nightly build that compiles for CUDA Pascal
using GCC5. The issue is that one of the `ArrayHandleMultiplexer` tests
is failing to copy an implicit array correctly. I think the problem is
that in this test the first and second type of the `Variant` are the same
size, but the first type has some padding in the middle whereas the
second type does not. When using this second type, the values in the
same position of the padding of the first type don't seem to be
initialized properly in the kernel invocation.
My nonexhaustive experiment shows that things work OK as long as the
first type is large enough and has no fillers. Enforce this by adding an
internal entry to the union that is completely full.
This new filtered designed for bi-variate analysis builds the continuous scatterplot of a 3D tetrahedralized mesh for two given scalar point fields. The continuous scatterplot is an extension of the discrete scatterplot for continuous bi-variate analysis.
The clip filter used to copy the input points and point fields as is,
regardless of if they were actually part of the output. With this change,
we track which input points are actually part of the output and copy
only those values.
Address: #112
ac889b500 Implement VecTraits class for all types
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Li-Ta Lo <ollie@lanl.gov>
Merge-request: !3018
f545feba8 Add changelog for documenting data license
a24358a1a Document source of WarpX files
60559ce9b Document the source of venn250.vtk
796ec9638 Document data that comes from VisIt tutorial
06391c4e6 Clarify license for ECL data
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Vicente Bolea <vicente.bolea@kitware.com>
Merge-request: !3016
The `VecTraits` class allows templated functions, methods, and classes to
treat type arguments uniformly as `Vec` types or to otherwise differentiate
between scalar and vector types. This only works for types that `VecTraits`
is defined for.
The `VecTraits` templated class now has a default implementation that will
be used for any type that does not have a `VecTraits` specialization. This
removes many surprise compiler errors when using a template that, unknown
to you, has `VecTraits` in its implementation.
One potential issue is that if `VecTraits` gets defined for a new type, the
behavior of `VecTraits` could change for that type in backward-incompatible
ways. If `VecTraits` is used in a purely generic way, this should not be an
issue. However, if assumptions were made about the components and length,
this could cause problems.
Fixes#589
The precompiled `ArrayRangeCompute` function was not following proper fast
paths for special arrays. For example, when computing the range of an
`ArrayHandleUniformPointCoordinates`, the ranges should be taken from the
origin and spacing of the special array. However, the precompiled version
was calling the generic range computation, which was doing an unnecessary
reduction over the entire array. These fast paths have been fixed.
These mistakes in the code were caused by quirks in how templated method
overloading works. To prevent this mistake from happening again in the
precompiled `ArrayRangeCompute` function and elsewhere, all templated forms
of `ArrayRangeCompute` have been deprecated. Most will call
`ArrayRangeCompute` with no issues. For those that need the templated
version, `ArrayRangeComputeTemplate` replaces the old templated
`ArrayRangeCompute`. There is exactly one templated declaration of
`ArrayRangeComputeTemplate` that uses a class, `ArrayRangeComputeImpl`,
with partial specialization to ensure the correct form is used.
`vtkm::cont::DataSet` is a dynamic object that can hold cell sets and
fields of many different types, none of which are known until runtime. This
causes a problem with serialization, which has to know what type to compile
the serialization for, particularly when unserializing the type at the
receiving end. The original implementation "solved" the problem by creating
a secondary wrapper object that was templated on types of field arrays and
cell sets that might be serialized. This is not a great solution as it
punts the problem to algorithm developers.
This problem has been completely solved for fields, as it is possible to
serialize most types of arrays without knowing their type now. You still
need to iterate over every possible `CellSet` type, but there are not that
many `CellSet`s that are practically encountered. Thus, there is now a
direct implementation of `Serialization` for `DataSet` that covers all the
data types you are likely to encounter.
The old `SerializableDataSet` has been deprecated. In the unlikely event an
algorithm needs to transfer a non-standard type of `CellSet` (such as a
permuted cell set), it can use the replacement `DataSetWithCellSetTypes`,
which just specifies the cell set types.
The `UnknownArrayHandle` has been updated to allow
`ArrayHandleRuntimeVec` to work interchangeably with basic
`ArrayHandle`. If an `ArrayHandleRuntimeVec` is put into an
`UnknownArrayHandle`, it can be later retrieved as an `ArrayHandleBasic`
as long as the base component type matches and it has the correct amount
of components. This means that an array can be created as an
`ArrayHandleRuntimeVec` and be used with any filters or most other
features designed to operate on basic `ArrayHandle`s. Likewise, an array
added as a basic `ArrayHandle` can be retrieved in an
`ArrayHandleRuntimeVec`. This makes it easier to pull arrays from VTK-m
and place them in external structures (such as `vtkDataArray`).
The new `ArrayHandleRuntimeVec` is a fancy `ArrayHandle` allows you to
specify a basic array of `Vec`s where the number of components of the `Vec`
are not known until runtime. (It can also optionally specify scalars.) The
behavior is much like that of `ArrayHandleGroupVecVariable` except that its
representation is much more constrained. This constrained representation
allows it to be automatically converted to an `ArrayHandleBasic` with the
proper `Vec` value type. This allows one part of code (such as a file
reader) to create an array with any `Vec` size, and then that array can be
fed to an algorithm that expects an `ArrayHandleBasic` of a certain value
type.
While updating the user's guide, I noticed a couple of minor problems
with how filters map fields. First, if a filter was using
`CreateResultCoordinateSystem`, it did not respect the
`PassCoordinateSystems` flag. Second, if both an `initializer_list` and
a mode was given to `SetFieldsToPass`, the mode was captured
incorrectly. Both problems are corrected.
The `GetNumberOfComponents` and `GetNumberOfComponentsFlat` methods in
`UnknownArrayHandle` have been updated to correctly report the number of
components in special `ArrayHandle`s where the `Vec` sizes of the values
are not selected until runtime.
Previously, these methods always reported 0 because the value type could
not report the size of the `Vec`. The lookup has been modified to query the
`ArrayHandle`'s `Storage` for the number of components where supported.
Note that this only works on `Storage` that provides a method to get the
runtime `Vec` size. If that is not provided, as will be the case if the
number of components can vary from one value to the next, it will still
report 0.
This feature is implemented by looking for a method named
`GetNumberOfComponents` is the `Storage` class for the `ArrayHandle`. If
this method is found, it is used to query the size at runtime.
Previously, `VectorMagnitude` only worked with `Vec`s of size 2, 3, or
4. It now works with `Vec`s of any size. It also avoids a memory copy of
non-float types (although it does add a little arithmetic in the
computation).
Previously, the probe filter only worked on certain `Vec` sizes and
converted many types to floating point.
This change uses the extract component feature to pull data from any
array at its natural component type.
The bad part of this change is that it has to call the worklet
separately for each component in the field. That adds overhead and
probably lowers the cache efficiency. It was implemented this way
because the cell interpolation function does not work with the
recombined vecs returned from extract array.
