GpuThreadIndex¶
The index of the running thread within its block.
Declaration¶
Sintaxe¶
GpuThreadIndex(int dim, ttype type, expr? value)
Argumentos¶
Argument |
Descrição |
|---|---|
|
which dimension to report, counting from zero. |
|
the type of the expression. |
|
the compile time value of the expression, when the frontend could fold it; |
Valores de retorno¶
The value of the expression.
Descrição¶
Every thread of a kernel runs the same body, and this is what tells them
apart. The index counts from zero within the block; the position in the whole
grid is GpuBlockIndex * GpuBlockSize + GpuThreadIndex. In a kernel whose
layout has lanes (see
gpu_kernel_layout), that position
numbers the iterations, which several threads share: the lanes, which
GpuLaneIndex tells apart.
Exemplos¶
(GpuThreadIndex
:dim 0
:type (Integer
:kind 4
)
:value nil
)
It comes from this complete ASR text document:
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(Array
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:dims [
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:type (Integer
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:dependencies []
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:body [
(Assignment
:target (Var
:v (SymbolRef 2 "i")
)
:value (IntegerBinOp
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:dim 0
:type (Integer
:kind 4
)
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)
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:type (Integer
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:type (Integer
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)
:op :Mul
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:dim 0
:type (Integer
:kind 4
)
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:kind 4
)
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(Assignment
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)
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)
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)
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:type (Real
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)
:storage_format :ColMajor
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)
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:type (Real
:kind 4
)
)
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)
]
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:access :Public
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)
}
)
:name "m"
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:intrinsic false
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)
"main" (Program
:symtab (SymbolTable
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:symbols {}
)
:name "main"
:dependencies []
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)
}
)
:items []
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)
Veja Também¶
exec_space, GpuKernelLaunch, GpuThreadIndex, GpuBlockIndex, GpuBlockSize