CUDA-4.1ΒΆ

Never invoke a kernel without a configuration

Required inputs: IR

CUDA 4.1 [kernel.unconfigured_call] Never invoke a kernel without a configuration

Direct or indirect calls to a global function shall always be configured.

Scope: Host, Device.
Audience: CUDA C++, CUDA Libraries.
Category: Mandatory.
Hardware Applicability: All Compute Capabilities.
Rationale

Functions that have the __global__ keyword are compiled for execution on a device and are not available on the host.

Example 1 (Bad)
__global__ void kernel();

int main() {
  auto pfn = &kernel;
  pfn(); // Non-compliant: call to a __global__ function without a configuration.
}
Excerpt from NVIDIA CUDA C++ Guidelines for robust and safety-critical programming, Version 3.0.1, Copyright (C) 2018-2023 NVIDIA Corporation.

Possible Messages

Key

Text

Severity

Disabled

cuda_kernel_unconfigured_call

Never invoke a kernel without a configuration

None

False

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