IO Configuration

Functions
void	cudf::io::kvikio_integration::set_up_kvikio (std::optional< uint32_t > nthreads=std::nullopt)
	Set KvikIO parameters. More...
bool	cudf::io::nvcomp_integration::is_all_enabled ()
	Returns true if all nvCOMP uses are enabled. More...
bool	cudf::io::nvcomp_integration::is_stable_enabled ()
	Returns true if stable nvCOMP use is enabled. More...
bool	cudf::io::integrated_memory_optimization::is_enabled ()
	Returns true if integrated memory optimizations are enabled. More...

Detailed Description

Function Documentation

is_all_enabled()

bool cudf::io::nvcomp_integration::is_all_enabled

(

)

#include <cudf/io/config_utils.hpp>

Returns true if all nvCOMP uses are enabled.

Returns

true if all nvCOMP uses are enabled

is_enabled()

bool cudf::io::integrated_memory_optimization::is_enabled

(

)

#include <cudf/io/config_utils.hpp>

Returns true if integrated memory optimizations are enabled.

Controlled by the LIBCUDF_INTEGRATED_MEMORY_OPTIMIZATION environment variable. Valid values: "AUTO" (default), "ON", "OFF"

• AUTO: Use hardware detection (cudaDevAttrIntegrated)
• ON: Always enable optimization
• OFF: Always disable optimization

Returns

true if integrated memory optimizations are enabled

is_stable_enabled()

bool cudf::io::nvcomp_integration::is_stable_enabled

(

)

#include <cudf/io/config_utils.hpp>

Returns true if stable nvCOMP use is enabled.

Returns

true true if stable nvCOMP use is enabled

set_up_kvikio()

void cudf::io::kvikio_integration::set_up_kvikio

(

std::optional< uint32_t >

nthreads = std::nullopt

)

#include <cudf/io/config_utils.hpp>

Set KvikIO parameters.

Parameters include:

• Compatibility mode, according to the environment variable KVIKIO_COMPAT_MODE. If KVIKIO_COMPAT_MODE is not set, enable it by default, which enforces the use of POSIX I/O.
• Thread pool size. If nthreads is provided, it is used directly. Otherwise, the value is read from the environment variable KVIKIO_NTHREADS, defaulting to 4 if unset.

Parameters

nthreads

Optional thread pool size override. If provided, supersedes KVIKIO_NTHREADS.