masahi commented on a change in pull request #7038:
URL: https://github.com/apache/tvm/pull/7038#discussion_r536512913
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File path: src/auto_scheduler/search_task.cc
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@@ -66,6 +69,11 @@ HardwareParams
HardwareParamsNode::GetDefaultHardwareParams(const Target& target
device_api->GetAttr(ctx,
tvm::runtime::DeviceAttrKind::kMaxRegistersPerBlock, &ret);
int max_registers_per_block = ret;
+ if (max_registers_per_block == 0) {
+ LOG(INFO) << "Device API reported kMaxRegistersPerBlock being 0, using
the value of "
+ "kMaxSharedMemoryPerBlock as max_registers_per_block.";
Review comment:
This is following mercy's suggestion
https://discuss.tvm.apache.org/t/auto-schedular-performance-on-amdgpu-the-first-attempt/8582/17
Since I also don't understand this issue well, I turned it into a comment
with more info.
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