CODEWITHSUNDEEP
objective-cmetal
Patroclus
Patroclus

Reputation: 1232

How to initialize a MPSMatrixMultiplication in Objective-C?

In Swift, we use

matrixMultiplication = MPSMatrixMultiplication(device: device, transposeLeft: false, transposeRight: false, resultRows: rowsC, resultColumns: columnsC, interiorColumns: columnsA, alpha: 1, beta: 0)

But when I try to call the method initWithDevice on MPSMatrixMultiplication, like [MPSMatrixMultiplication initWithDeivce ...]", it shows "No known class method for selector 'initWithDevice'"

So what's the correct way to declare a MPSMatrix in Objective-C? Isn't this method a class method since it returns a pointer to the object it initialized.

Upvotes: 0

Views: 177

Answers (1)

matt
matt

Reputation: 535944

Isn't this method a class method

No, Objective-C initializers are instance methods. You have to create an instance with alloc. So 

MPSMatrixMultiplication* mult = [[MPSMatrixMultiplication alloc] initWith...];

That (alloc-init) is always the pattern for initialization in Objective-C.

Upvotes: 2

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