How to Generate librmm.so

[ZiqiFrancisFan]

I followed the steps to build rmm from source code. However, I didn't get librmm.so as expected under build folder. Where can I find it after building?

[harrism]

Currently, RMM is a header-only library. So when you build RMM, what you are building is (in the case of C++) just unit tests. For RMM Python, the build does create a binary library for the Python bindings of the C++ library.

[bdice]

As of #1779 we are considering making RMM a shared library rather than header-only. Mark’s comments are correct about the current state of things.

[ZiqiFrancisFan]

What is the correct way of inclusion to make c++ compilation work? I got the following piece of simple code for compiling with nsys:

#include <gtest/gtest.h>
#include <rmm/mr/device/device_memory_resource.hpp>

TEST(RMM, profile)
{

}

It complained about the following:

/usr/bin/g++ -Wall -pthread -std=c++14 -I/usr/local/cuda/include -Isrc -I/home/myuser/include -I/usr/local/include -o bin/test.o -c src/test.cpp
In file included from src/test.cpp:4:
/home/myuser/include/rmm/mr/device/device_memory_resource.hpp:312:65: error: 'cuda::mr' has not been declared
312 | friend void get_property(device_memory_resource const&, cuda::mr::device_accessible) noexcept {}
| ^~
/home/myuser/include/rmm/mr/device/device_memory_resource.hpp:361:21: error: 'cuda::mr' has not been declared
361 | static_assert(cuda::mr::async_resource_with<device_memory_resource, cuda::mr::device_accessible>);
| ^~
/home/myuser/include/rmm/mr/device/device_memory_resource.hpp:361:67: error: expected primary-expression before ',' token
361 | static_assert(cuda::mr::async_resource_with<device_memory_resource, cuda::mr::device_accessible>);
| ^
/home/myuser/include/rmm/mr/device/device_memory_resource.hpp:361:69: error: expected string-literal before 'cuda'
361 | static_assert(cuda::mr::async_resource_with<device_memory_resource, cuda::mr::device_accessible>);
| ^~~~
/home/myuser/include/rmm/mr/device/device_memory_resource.hpp:361:68: error: expected ')' before 'cuda'
361 | static_assert(cuda::mr::async_resource_with<device_memory_resource, cuda::mr::device_accessible>);

My container uses cuda 12.5.1.

[harrism]

Please define LIBCUDACXX_ENABLE_EXPERIMENTAL_MEMORY_RESOURCE. See #1783

[bdice]

Marking this as complete for now -- please feel free to follow up and re-open if you have more questions!