unsafe public long Calculate(Dictionary <int, NativeArray <int> > map)
{
NativeArray <ulong> pointers = new NativeArray <ulong>(map.Count, Allocator.TempJob);
NativeArray <int> len = new NativeArray <int>(map.Count, Allocator.TempJob);
NativeArray <long> subSums = new NativeArray <long>(map.Count, Allocator.TempJob);
NativeArray <long> totalSum = new NativeArray <long>(1, Allocator.TempJob);
// hopefully this is fast for what I need
int i = 0;
foreach (var item in map)
{
NativeArray <int> array = item.Value;
len[i] = array.Length;
void *ptr = array.GetUnsafePtr();
pointers[i++] = (ulong)ptr;
}
JobHandle handle1 = new CalculateMultiJob
{
longPointers = pointers,
arrayLengths = len,
subSums = subSums
}.Schedule(map.Count, 1);
JobHandle handle2 = new sumUpArrayVals
{
subSums = subSums,
output = totalSum
}.Schedule(handle1);
// If possible this should either go into a yeild pattern or complete in lateUpdate
handle2.Complete();
long sum = totalSum[0];
pointers.Dispose();
len.Dispose();
subSums.Dispose();
totalSum.Dispose();
return(sum);
}
unsafe public long Calculate(Dictionary <int, NativeArray <int> > map)
{
// This relies on being called in the main thread
// trick the job system into using ulong as a holder for void*
_pointers = new NativeArray <ulong>(map.Count, Allocator.TempJob);
_subSums = new NativeArray <long>(map.Count, Allocator.TempJob);
// Scalars seem to need to be in Native Structures
_lens = new NativeArray <int>(map.Count, Allocator.TempJob);
_totalSum = new NativeArray <long>(1, Allocator.TempJob);
int i = 0;
foreach (var item in map)
{
NativeArray <int> array = item.Value;
_lens[i] = array.Length;
void *ptr = array.GetUnsafePtr();
_pointers[i++] = (ulong)ptr;
}
// create a job to calculate each Array in parallel
JobHandle handle1 = new CalculateMultiJob
{
longPointers = _pointers,
arrayLengths = _lens,
subSums = _subSums // subsums will be the output passed to next job
}.Schedule(map.Count, 1);
// Consolidate all the sub sums into one master sum and schedule
JobHandle handle2 = new sumUpArrayVals
{
subSums = _subSums,
output = _totalSum
}.Schedule(handle1);
pendingJob = true;
handle = handle2;
return(-1);
}