How to use the osqp._osqp function in osqp
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oxfordcontrol / osqp-python / module / utils.py View on Github 
def linsys_solver_str_to_int(settings):
linsys_solver_str = settings.pop('linsys_solver', '')
if not isinstance(linsys_solver_str, str):
raise TypeError("Setting linsys_solver " +
"is required to be a string.")
linsys_solver_str = linsys_solver_str.lower()
if linsys_solver_str == 'qdldl':
settings['linsys_solver'] = _osqp.constant('QDLDL_SOLVER')
elif linsys_solver_str == 'mkl pardiso':
settings['linsys_solver'] = _osqp.constant('MKL_PARDISO_SOLVER')
# Default solver: QDLDL
elif linsys_solver_str == '':
settings['linsys_solver'] = _osqp.constant('QDLDL_SOLVER')
else: # default solver: QDLDL
warn("Linear system solver not recognized. " +
"Using default solver QDLDL.")
settings['linsys_solver'] = _osqp.constant('QDLDL_SOLVER')
return settingsif l is not None:
if not isinstance(l, np.ndarray):
raise TypeError("l must be numpy.ndarray, not %s" %
type(l).__name__)
elif len(l) != m:
raise ValueError("l must have length m")
# Convert values to -OSQP_INFTY
l = np.maximum(l, -_osqp.constant('OSQP_INFTY'))
if u is not None:
if not isinstance(u, np.ndarray):
raise TypeError("u must be numpy.ndarray, not %s" %
type(u).__name__)
elif len(u) != m:
raise ValueError("u must have length m")
# Convert values to OSQP_INFTY
u = np.minimum(u, _osqp.constant('OSQP_INFTY'))
if Ax is None:
if len(Ax_idx) > 0:
raise ValueError("Vector Ax has not been specified")
else:
if len(Ax_idx) > 0 and len(Ax) != len(Ax_idx):
raise ValueError("Ax and Ax_idx must have the same lengths")
if Px is None:
if len(Px_idx) > 0:
raise ValueError("Vector Px has not been specified")
else:
if len(Px_idx) > 0 and len(Px) != len(Px_idx):
raise ValueError("Px and Px_idx must have the same lengths")
if q is None and l is None and u is None and Px is None and Ax is None:
raise ValueError("No updatable data has been specified")
# update linear costdef linsys_solver_str_to_int(settings):
linsys_solver_str = settings.pop('linsys_solver', '')
if not isinstance(linsys_solver_str, str):
raise TypeError("Setting linsys_solver " +
"is required to be a string.")
linsys_solver_str = linsys_solver_str.lower()
if linsys_solver_str == 'qdldl':
settings['linsys_solver'] = _osqp.constant('QDLDL_SOLVER')
elif linsys_solver_str == 'mkl pardiso':
settings['linsys_solver'] = _osqp.constant('MKL_PARDISO_SOLVER')
# Default solver: QDLDL
elif linsys_solver_str == '':
settings['linsys_solver'] = _osqp.constant('QDLDL_SOLVER')
else: # default solver: QDLDL
warn("Linear system solver not recognized. " +
"Using default solver QDLDL.")
settings['linsys_solver'] = _osqp.constant('QDLDL_SOLVER')
return settings
