Function cusolverDnGetFixedPointEmulationMaxMantissaBitCount 

pub unsafe extern "C" fn cusolverDnGetFixedPointEmulationMaxMantissaBitCount(
    handle: cusolverDnHandle_t,
    mantissaBitCount: *mut c_int,
) -> cusolverStatus_t

This function queries the maximum number of mantissa bits used for fixed point FP64 emulation.

The mantissa bit count returned by this API only has an effect, once one of the following math modes is enabled (see also cusolverMathMode_t):

• cusolverMathMode_t::CUSOLVER_FP64_EMULATED_FIXEDPOINT_MATH
• cusolverMathMode_t::CUSOLVER_FP32_FP64_EMULATED_MATH

cusolverStatus_t::CUSOLVER_STATUS_SUCCESS: The mantissa bit count was queried successfully.

cusolverStatus_t::CUSOLVER_STATUS_NOT_INITIALIZED: The library was not initialized.

cusolverStatus_t::CUSOLVER_STATUS_INVALID_VALUE: mantissaBitCount is a NULL pointer.

Parameters

• handle: Handle to the cuSolverDN library context.
• mantissaBitCount: The maximum number of mantissa bits used.

Return value

• cusolverStatus_t::CUSOLVER_STATUS_INVALID_VALUE: mantissaBitCount is a NULL pointer.
• cusolverStatus_t::CUSOLVER_STATUS_NOT_INITIALIZED: The library was not initialized.
• cusolverStatus_t::CUSOLVER_STATUS_SUCCESS: The mantissa bit count was queried successfully.