nl / NANOLABO /python /nanolabo.py
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# -*- coding: utf-8 -*-
import os, threading, time, sys
if os.name == "nt":
import win32pipe, win32file
if sys.version_info[0] < 3:
import codecs
_pipe_out = None
_pipe_out_result = None
_nanolabo_dir = None
_debug = False
_echo = False
def write_pipe_in(input):
"""Write input string to pipe nanolaboIn"""
if _echo or _debug: print(input)
if sys.version_info[0] < 3:
open2 = codecs.open
else:
open2 = open
for i in range(30):
try:
if os.name == "nt":
handle = open2(r'\\.\pipe\nanolaboIn', 'w', buffering=1, encoding='utf-8')
elif os.name == "posix" and os.path.exists('/tmp/nanolaboIn'):
handle = open2('/tmp/nanolaboIn', 'w', buffering=1, encoding='utf-8')
break
except IOError as e:
if e.errno == 2:
time.sleep(0.1)
continue
else:
print("I/O error({0}): {1}".format(e.errno, e.strerror))
raise e
else:
print("error: failed to open pipe nanolaboIn")
try:
if sys.version_info[0] < 3 and type(input) is str:
handle.write(unicode(input, sys.stdin.encoding))
else:
handle.write(input)
handle.flush()
handle.close()
except IOError as e:
print("I/O error({0}): {1}".format(e.errno, e.strerror))
raise e
except Exception as e:
print("error: failed to write to pipe nanolaboIn")
raise e
def _create_pipe_out():
global _pipe_out
global _debug
if _pipe_out is not None:
if _debug: print("use existing pipe nanolaboOut")
if os.name == "nt":
win32pipe.DisconnectNamedPipe(_pipe_out)
win32pipe.ConnectNamedPipe(_pipe_out, None)
return
try:
if os.name == "nt":
_pipe_out = win32pipe.CreateNamedPipe(
r'\\.\pipe\nanolaboOut',
win32pipe.PIPE_ACCESS_INBOUND,
win32pipe.PIPE_TYPE_BYTE | win32pipe.PIPE_WAIT,
1, 4096, 4096,
100,
None)
#win32pipe.WaitNamedPipe(_pipe_out, 1000)
if _debug: print("created pipe nanolaboOut")
win32pipe.ConnectNamedPipe(_pipe_out, None)
elif os.name == "posix":
pipe_path = "/tmp/nanolaboOut"
if not os.path.exists(pipe_path):
os.mkfifo(pipe_path)
if _debug: print("created pipe nanolaboOut")
_pipe_out = os.open(pipe_path, os.O_RDONLY | os.O_NONBLOCK)
if _debug: print("opened pipe nanolaboOut")
except:
print("error: failed to create pipe nanolaboOut")
return
def _read_pipe_out():
global _pipe_out
global _pipe_out_result
global _debug
if os.name == "nt":
for i in range(30):
try:
#win32file.SetFilePointer(_pipe_out,0,win32file.FILE_BEGIN)
status, result = win32file.ReadFile(_pipe_out, 4096)
break
except IOError as e:
if e.errno == 2:
time.sleep(0.1)
continue
else:
print("I/O error({0}): {1}".format(e.errno, e.strerror))
raise e
else:
print("error: failed to read pipe nanolaboOut")
return
if _debug: print(status)
_pipe_out_result = result.decode("utf-8")
return
elif os.name == "posix":
for i in range(30):
try:
result = os.read(_pipe_out, 4096)
except OSError as err:
if err.errno == 11:
time.sleep(0.1)
continue
else:
raise err
if len(result) != 0:
_pipe_out_result = result.decode("utf-8")
#os.close(_pipe_out)
break
time.sleep(0.1)
return
else:
return
def query_pipe(input):
"""Write input string to pipe nanolaboIn and read output string from pipe nanolaboOut"""
global _pipe_out
global _pipe_out_result
global _debug
if os.name == "nt" and _pipe_out is not None:
_pipe_out.close()
_pipe_out = None
thread_out = threading.Thread(target = _create_pipe_out)
thread_out.setDaemon(True)
if _debug: print("start nanolaboOut thread")
thread_out.start()
if _debug: sys.stdout.write("waiting for pipe nanolaboOut created ... ")
for i in range(30):
if _pipe_out is not None:
break
time.sleep(0.1)
if _debug: sys.stdout.write("\rwaiting for pipe nanolaboOut created ... {0}/30".format(i))
else:
print("")
print("error: failed to create pipe nanolaboOut")
return None
if _debug: print("")
if os.name == "posix":
#flush previous result
os.read(_pipe_out, 4096)
if _debug: print("input: " + input)
write_pipe_in(input)
if _debug: print("wrote to nanolaboIn")
_pipe_out_result = None
thread_read = threading.Thread(target = _read_pipe_out)
thread_read.setDaemon(True)
if _debug: print("start read thread")
thread_read.start()
if _debug: sys.stdout.write("waiting for read ...")
for i in range(30):
if _pipe_out_result is not None:
break
time.sleep(0.1)
if _debug: sys.stdout.write("\rwaiting for read ... {0}/30".format(i))
else:
print("")
print("failed to read pipe nanolaboOut")
return None
if _debug: print("")
if _debug: print("read from nanolaboOut")
return _pipe_out_result
def _get_nanolabo_dir():
global _nanolabo_dir
if _nanolabo_dir is None:
_nanolabo_dir = query_pipe("#projectsPath")
return _nanolabo_dir
def _get_full_path(path):
if _debug: print("get_full_path " + path)
if os.path.isdir(path):
return os.path.abspath(path)
else:
path2 = _get_nanolabo_dir()
if path2 is None:
return None
path2 += "/" + path
if os.path.isdir(path2):
return os.path.abspath(path2)
else:
print("error: path not exist")
return None
def open_project(path):
"""Open a project."""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return
query_pipe("#openProject " + path2)
def close_project(path):
"""Close a project."""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return
query_pipe("#closeProject " + path2)
def save_project(path, dst_path=""):
"""Save a project.
If dst_path is specified, the project is saved as another project.
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return
dst_path2 = ""
if dst_path == "":
dst_path2 = path2
else:
if os.path.isabs(dst_path):
dst_path2 = dst_path
else:
dst_path2 = os.path.abspath(_get_nanolabo_dir() + "/" + dst_path)
if sys.version_info[0] < 3:
dst_path2 = dst_path2.encode()
if os.path.exists(dst_path2):
print("error: destination path already exists")
print(dst_path2)
return
if dst_path2 is None:
print("error: invalid destination path")
return
query_pipe("#saveProject " + path2 + " " + dst_path2)
def mode_project(path, mode):
"""Change calculator of a project."""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return
if mode not in set(["QuantumESPRESSO", "LAMMPS"]): #TODO:add NWChem
print("error: invalid calculation mode")
return
query_pipe("#modeProject " + path2 + " " + mode)
def run_project(path, jobType="", host="", queue=""):
"""Run a project.
jobType: "SCF"(default), "OPTIMIZ", "MD", "DOS", "BAND", "TDDFT", "Phonon", "PhDisp", "NEB", "LAMMPS".
host: "localhost"(default), or SSH/Lambda server host name (need settings be done within NanoLabo GUI beforehand).
queue: specify in case you use SSH/Lambda server.
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return
if jobType not in set(["", "SCF", "OPTIMIZ", "MD", "DOS", "BAND", "TDDFT", "Phonon", "PhDisp", "NEB", "LAMMPS"]): #TODO:add NWChem
print("error: invalid job type")
return
if host != "" and host.lower() != "localhost" and queue == "":
print("error: queue name cannot be empty to run on SSH/Lambda server.")
return
query_pipe("#runProject " + path2 + " " + jobType + " " + host + " " + queue)
def create_project(file_path, project_path=""):
"""Create new project from atomic structure file.
The project is saved to project_path if specified, or to the default projects directory otherwise.
"""
if not os.path.isfile(file_path):
print("error: invalid file path")
return
file_path2 = os.path.abspath(file_path)
project_path2 = ""
if project_path != "":
if os.path.isabs(project_path):
project_path2 = project_path
else:
project_path2 = os.path.abspath(_get_nanolabo_dir() + "/" + project_path)
if sys.version_info[0] < 3:
project_path2 = project_path2.encode()
query_pipe("#createProject " + file_path2 + " " + project_path2)
def clear_all_atoms(path):
"""Clear all atoms in a project."""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return
query_pipe("#clearAllAtoms " + path2)
def set_all_atoms(path, atomsFile):
"""Set geometry info of a project from file.
Geometry info already in the project will be overwritten.
The file format contains lattice vectors, number of atoms,
and coordinates of atoms in this order, as follows:
-------------------------
3.09200995 0.00000000 0.00000000 # ax ay az
-1.54600497 2.67775791 0.00000000 # bx by bz
0.00000000 0.00000000 5.07335137 # cx cy cz
4 # number of atoms
Si -0.000002 1.785172 2.534588 1 1 1 # name x y z FIXED_X FIXED_Y FIXED_Z
Si 1.546002 0.892585 5.071262 0 0 0 # 0:fixed, 1:mobile
C -0.000002 1.785172 4.441264 0 0 0
C 1.546002 0.892585 1.904590 0 0 0
-------------------------
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return
if not os.path.isfile(atomsFile):
print("error: invalid atomsFile")
return
atomsFile2 = os.path.abspath(atomsFile)
query_pipe("#setAllAtoms " + path2 + " " + atomsFile2)
def get_lattice(path):
"""Get lattice vectors of a project"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return
strlat = query_pipe("#getLattice " + path2)
if strlat is None:
return None
strlat2 = strlat.split()
if len(strlat2) != 9:
return None
lat = [float(x) for x in strlat2]
return [lat[0:3], lat[3:6], lat[6:9]]
def set_lattice(path, lattice):
"""Set lattice vectors of a project.
lattice: 2D list of size 3*3
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return
if [len(v) for v in lattice] != [3, 3, 3]:
print("error: lattice must be 2D list of size 3x3")
return
strlat = " ".join([" ".join([str(x) for x in v]) for v in lattice])
query_pipe("#setLattice " + path2 + " " + strlat)
def num_atoms(path):
"""Get number of atoms in a project."""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
result = query_pipe("#numAtoms " + path2)
return int(result) if result is not None else None
def add_atom(path, name, x, y, z):
"""Add an atom to a project.
name: element symbol of the atom to be added
In case you have coordinates as a list, you can unpack it when calling the function:
>>> coords = [0.0, 0.0, 0.0]
>>> add_atom(path, name, *coords)
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
query_pipe("#addAtom " + path2 + " " + name + " " + str(x) + " " + str(y) + " " + str(z))
def remove_atom(path, index):
"""Remove an atom in a project. The index starts at 0."""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
query_pipe("#removeAtom " + path2 + " " + str(index))
def get_atom_name(path, index):
"""Get name (element symbol) of an atom in a project. The index starts at 0."""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
return query_pipe("#getAtomName " + path2 + " " + str(index))
def get_atom_xyz(path, index):
"""Get coordinates of an atom in a project as a list. The index starts at 0.
Returns 2D list: [[x, y, z], [FIXED_X, FIXED_Y, FIXED_Z]], 0:fixed, 1:mobile.
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
result = query_pipe("#getAtomXYZ " + path2 + " " + str(index))
if result is None:
return None
coord = result.split()
if len(coord) != 6:
return None
return [[float(x) for x in coord[0:3]], [int(x) for x in coord[3:6]]]
def set_atom_name(path, index, name):
"""Change an atom in a project. The index starts at 0.
name: element symbol of the atom
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
query_pipe("#setAtomName " + path2 + " " + str(index) + " " + name)
def set_atom_xyz(path, index, x, y, z, xfix=1, yfix=1, zfix=1):
"""Set coordinates of an atom in a project. The index starts at 0.
In case you have coordinates as a list, you can unpack it when calling the function:
>>> coords = [0.0, 0.0, 0.0]
>>> set_atom_xyz(path, name, *coords)
You can also set if the atom is fixed. 0:fixed, 1:mobile (default).
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
query_pipe(" ".join(["#setAtomXYZ", path2] + [str(x) for x in [index, x, y, z, xfix, yfix, zfix]]))
def qe_get_kpoints(path):
"""Get number of K points for SCF calculation of a project.
Returns 2D list: [[nk1, nk2, nk3], [sk1, sk2, sk3]]
sk's specify whether to apply offset. Please refer to QE manual (K_POINTS automatic) for detail.
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
result = query_pipe("#qeGetKPoints " + path2)
if result is None:
return None
kpoints = result.split()
if len(kpoints) != 6:
return None
return [[int(x) for x in kpoints[0:3]], [int(x) for x in kpoints[3:6]]]
def qe_set_kpoints(path, nk1, nk2, nk3, sk1, sk2, sk3):
"""Set number of K points for SCF calculation of a project.
nk's: number of K points, sk's: whether to apply offset
Please refer to QE manual (K_POINTS automatic) for detail.
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
query_pipe(" ".join(["#qeSetKPoints", path2] + [str(x) for x in [nk1, nk2, nk3, sk1, sk2, sk3]]))
def qe_get_mass(path, name):
"""Get atomic mass currently set for an element.
name: element symbol
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
result = query_pipe("#qeGetMass " + path2 + " " + name)
return float(result) if result is not None else None
def qe_set_mass(path, name, mass):
"""Set atomic mass for an element.
name: element symbol
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
query_pipe("#qeSetMass " + path2 + " " + name + " " + str(mass))
def qe_get_pseudo(path, name):
"""Get pseudo potential file name currently set for an element.
name: element symbol
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
return query_pipe("#qeGetPseudo " + path2 + " " + name)
def qe_set_pseudo(path, name, pseudo):
"""Set pseudo potential file name for an element.
name: element symbol
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
query_pipe("#qeSetPseudo " + path2 + " " + name + " " + pseudo)
def qe_get_total_energy(path):
"""Get total energy calculated by Quantum ESPRESSO
Returns list: [isConverged, total energy]
1:converged, 0:not converged
"""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
result = query_pipe("#qeGetTotalEnergy " + path2)
if result is None:
return None
result2 = result.split()
if len(result2) != 2:
return None
conv, te = result2
return [int(conv), float(te)]
def qe_get_geometry(path):
"""Export optimized geometry info to file and returns if the optimization is converged."""
path2 = _get_full_path(path)
if path2 is None:
print("error: invalid project path")
return None
result = query_pipe("#qeGetGeometry " + path2)
if result is None:
return None
return result.startswith("1")