The `ArrayHandleStreaming` class stems from an old research project
experimenting with bringing data from an `ArrayHandle` in parts and
overlapping device transfer and execution. It works, but only in very
limited contexts. Thus, it is not actually used today. Plus, the feature
requires global indexing to be permutated throughout the worklet
dispatching classes of VTK-m for no further reason.
Because it is not really used, there are other more promising approaches
on the horizon, and it makes further scheduling improvements difficult,
we are removing this functionality.
One of the execution tests, UnitTestScatterAndMaskWithTopology,
was defining a hierarchy of worklets that defined a virtual
operator(). It mostly still worked since the code was executed
with the final type and thus did not actually need to look up
the virtual table. However, some invalid memory access must have
been happening in CUDA since under some unpredictable circumstances
a memory protection error was happening.
This fixes the problem by removing the virtual methods.
42bc9a393 Fix gaps in type support
dc112b516 Enable changing policy used for library compiles
76f870150 Type check input and output array arguments differently
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !1997
With recent changes to allow a configuration to change the default
types, storage, and cell sets, it is possible to feed filters and other
components types they were not previously expecting. Fix feature gaps
where these components were not accepting the types they should.
Previously, the PolicyDefault used to compile all the filters was hard-
coded. The problem was that if any external project that depends on VTK-
m needs a different policy, it had to recompile everything in its own
translation units with a custom policy.
This change allows an external project provide a simple header file that
changes the type lists used in the default policy. That allows VTK-m to
compile the filters exactly as specified by the external project.
Read-only arrays (usually) do not define Set methods. Thus, using one in
an Invoke argument that does output will result in compile errors. To
help avoid that, modify the type checks to differentiate input and
output arrays.
e2c32ffac add unit test for WorkletMapTopology
0e90c22e7 Worklet{MapTopology,PointNeighbor} custom sg/mask
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !1980
As a general C++ "rule of three," if one of a copy constructor, copy
assignment, or destructor is defined, all three should be defined. Some
compilers issue warnings if this rule of three is violated.
It is sometimes the case that we define a destructor simply because it
is only valid in the control environment. When doing so, add
implementations for copy constructor and assignment as well.
Previously, the ArrayPortalCheck wrapper did not allow access to the
superclass' Get for 3D indices. This solves that problem and also fixes
it for Set (assuming there is ever an instance of that).
After lots of experimenting, it appears that VS 2015 has problems when
you list a variate template argument before a normal template argument
in a specialization of a function, The compiler seems happy when the
variate argument is placed at the end of the template arguments.
The nvcc compiler was having problem resolving a template partial
specialization that contained a template param with its own number
list and another param that depended on that template.
`integer_sequence` is an essential tool when dealing with structures
like a `Tuple`. Make sure that we have one (even though it was not
introduced until C++14).
Currently, VTK-m is using C++11. However, it is often useful to use
features in the `std` namespace that are defined for C++14 or later. We
can provide our own versions (sometimes), but it is preferable to use
the version provided by the compiler if available.
There were already some examples of defining portable versions of C++14
and C++17 classes in a `vtkmstd` namespace, but these were sprinkled
around the source code.
There is now a top level `vtkmstd` directory and in it are header files
that provide portable versions of these future C++ classes. In each
case, preprocessor macros are used to select which version of the class
to use.
Made a new vtkm::Tuple class to replace tao tuple.
This version of Tuple should hopefully compile faster. Having our own
implementation should also make it easier to port to new devices.
Previously, when a ReadPortal or a WritePortal was returned from an
ArrayHandle, it had wrapped in it a Token that was attached to the
ArrayHandle. This Token would prevent other reads and writes from the
ArrayHandle.
This added safety in the form of making sure that the ArrayPortal was
always valid. Unfortunately, it also made deadlocks very easy. They
happened when an ArrayPortal did not leave scope immediately after use
(which is not all that uncommon).
Now, the ArrayPortal no longer locks up the ArrayHandle. Instead, when
an access happens on the ArrayPortal, it checks to make sure that
nothing has happened to the data being accessed. If it has, a fatal
error is reported to the log.
Even if an error condition occurs, the output parameter should be
initialized to something. This makes the behavior predicatable on error
conditions and prevents uninitialized variable warnings.
This is a flag that functions in the execution environment can return to
report on the status of the operation. This way they can report an error
without forcing the entire invocation to shut down.
The change affects the method GetThreadIndices for both
WorkletMapTopology and WorkletPointNeighborhood.
Before an scatter or mask which was not ScatterIdentity or MaskNone
was not allowed and it was enforced at compilation time.
Signed-off-by: Vicente Adolfo Bolea Sanchez <vicente.bolea@kitware.com>
Cell operations like interpolate and finding parametric coordinates can
fail under certain conditions. Typically these call RaiseError on the
worklet. But that can make a worklet unstable, so provide paths where no
error is raised.
aa7dcf915 push forward until new valid cell
6aafc42f1 move forward until encountering new cell for lost rays
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1985
fd3052542 Restructure Contour algorithm to make it easier to add specialized versions
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1973
When `ArrayPortalToken::Detach` was called, the contained `Token` was
detached, but `ArrayPortal` being wrapped might also be holding its own
portal that it is decorating. To ensure that any dependent portals are
also detached, `ArrayPortalToken::Detach` resets itself.
This fixes an issue where getting a `ReadPortal` or a `WritePortal` from
an `ArrayHandleVirtual` could cause a deadlock from a held token even if
the returned portal was detached or destroyed.
The problem was that `ArrayHandleVirtual` was keeping a reference to the
`ArrayPortal` from the concrete array. This was because the returned
`ArrayPortalRef`, which was designed to work on both control and
execution environments, had no good way to destroy the portal. This
meant that the `ArrayHandleVirtual` was caching a copy of the concrete
array's portal. This was not a great idea before because the array could
get invalidated. It is worse now because it keeps the concrete array
locked.
Fixed the problem by subclassing `vtkm::ArrayPortalRef` to make a
control-specific version that will delete the concrete portal on its own
destruction.
This commit changes how CoordinateSystemTransforms write their result.
Before theoy would write their result in a DataSet in which the new
Coords where stored in a field with the name of:
- cylindricalCoordinateSystemTransform
- sphericalCoordinateSystemTransform
Now, they write their results as a DataSet in which its first Coords
are the transformed Coords. Previous Coordinates are appended
Signed-off-by: Vicente Adolfo Bolea Sanchez <vicente.bolea@kitware.com>
This commit also:
- Removes a corner case not longer used at ArrayPortalGroupVecVariable::get
- Changes doc regarding the number of offset elements in the input
array handler of ConvertNumComponentsToOffsets.
- Updates invokation of make_ArrayGroupVectVariable in multiple files
- Adds its corresponding changelog entry
1f1688483 Initial infrastructure to allow WorkletMapField to have 3D scheduling
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Kenneth Moreland <kmorel@sandia.gov>
Merge-request: !1938
The ArrayPortalWrapper is used for both execution and control portals.
When it was wrapped around a control portal that does not work on CUDA
devices, we were getting ugly warnings even though the intention was
only to use it in the control environment.
With the new thread safety/token code, the vtkm_cont library now relies
on the pthreads library (or whatever threads library is used by std on
the system). Make sure this library gets added to vtkm_cont.
Apparently when future::get returns, it is not the case that all
resources of the future are cleaned up (only that the calling function
has returned). Do not rely on this resource cleanup for the test to
pass.
The type for PortalType was declared before the class from which the
type came from. Normally this was not a big deal since the template was
resolved later, but nvcc seemed to have a problem with it.
For an ArrayHandleTransform with no inverse functor, it really
only supports read-only portals. Thus, the non-const portal
for the execution environment was set to some unused control
portal. That was causing problems with CUDA, so make the
non-const portal valid (although without a Set).
Because ArrayPortalToken does not have an IteratorType,
ArrayPortalToIterators assumed it had to wrap it in an
IteratorFromArrayPortal object. Now it uses PortalSupportsIterators
(from ArrayPortalHelpers.h) to determine whether the iterators are
there. This does work with ArrayPortalToken.
To get a portal to access ArrayHandle values in the control
environment, you now use the ReadPortal and WritePortal methods.
The portals returned are wrapped in an ArrayPortalToken object
so that the data between the portal and the ArrayHandle are
guaranteed to be consistent.
This fixes an issue where moving a Token object left the original Token
in an invalid state because the poiner to the internals was NULL. Rather
than allocate a new one, just make the Token work correctly if the
internals are NULL.
It is questionable whether there is a point to having a token object
when transfering a virtual object to a device (since there is a handle
object that is managing it anyway). Back out of passing the token all
the way down unless there is an actual need for that.
Marked the old versions of PrepareFor* that do not use tokens as
deprecated and moved all of the code to use the new versions that
require a token. This makes the scope of the execution object more
explicit so that it will be kept while in use and can potentially be
reclaimed afterward.
When a single `ArrayHandle` is given to multiple arguments of a worklet
dispatch, the `PrepareFor*` methods will be called multiple times with
the same token. If one of them is a `PrepareForInPlace` or
`PrepareForOutput`, then the two requests will deadlock. To prevent
this, allow the `PrepareFor*` to happen if the same token was used
previously.
The old version of ExecutionObject (that only takes a device) is still
supported, but you will get a deprecated warning if that is what is
defined.
Supporing this also included sending vtkm::cont::Token through the
vtkm::cont::arg::Transport mechanism, which was a change that propogated
through a lot of code.
Duplicated the new versions of PrepareFor* methods from the basic
ArrayHandle that take a token in addition to the other arguments. The
ArrayHandle attaches itself to the token and will not allow operaitons
that make the returned portal invalid until the token goes out of scope.
Later the old versions will be deprecated.
Added new versions of PrepareFor* methods that take a token in addition
to the other arguments. The ArrayHandle attaches itself to the token and
will not allow operations that make the returned portal invalid until
the token goes out of scope.
Later the old versions will be deprecated.
e68b283e8 Delete commented, unused class variables
4d358e5b2 Remove coordinates from class member variable list
e6647efaf Fix condition to populate coordinate variables
2e2a847f5 Change Lagrangian output format to structured grid
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Kenneth Moreland <kmorel@sandia.gov>
Merge-request: !1945
f7709a8db Mark deprecated superclasses of WorkletMapTopology with VTKM_DEPRECATED
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !1955
1f61c500e Remove non-atomic ops from BitField unit test.
5565848d9 Use a dynamic strategy for openmp 1D scheduling.
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !1925
