* Remove gil from parser.call

spacy/_ml.pxd

@@ -24,7 +24,7 @@ cdef class Model:
     cdef readonly int n_feats
     
     cdef const weight_t* score(self, atom_t* context) except NULL
-    cdef int set_scores(self, weight_t* scores, atom_t* context) except -1
+    cdef int set_scores(self, weight_t* scores, atom_t* context) nogil
 
     cdef int update(self, atom_t* context, class_t guess, class_t gold, int cost) except -1
     

spacy/_ml.pyx

@@ -75,7 +75,7 @@ cdef class Model:
         feats = self._extractor.get_feats(context, &n_feats)
         return self._model.get_scores(feats, n_feats)
 
-    cdef int set_scores(self, weight_t* scores, atom_t* context) except -1:
+    cdef int set_scores(self, weight_t* scores, atom_t* context) nogil:
         cdef int n_feats
         feats = self._extractor.get_feats(context, &n_feats)
         self._model.set_scores(scores, feats, n_feats)

spacy/syntax/arc_eager.pyx

@@ -374,17 +374,16 @@ cdef class ArcEager(TransitionSystem):
             st._sent[i].r_edge = i
         st.fast_forward()
 
-    cdef int finalize_state(self, StateClass st) except -1:
-        cdef int root_label = self.strings['ROOT']
+    cdef int finalize_state(self, StateClass st) nogil:
         for i in range(st.length):
             if st._sent[i].head == 0 and st._sent[i].dep == 0:
-                st._sent[i].dep = root_label
+                st._sent[i].dep = self.root_label
             # If we're not using the Break transition, we segment via root-labelled
             # arcs between the root words.
-            elif USE_ROOT_ARC_SEGMENT and st._sent[i].dep == root_label:
+            elif USE_ROOT_ARC_SEGMENT and st._sent[i].dep == self.root_label:
                 st._sent[i].head = 0
 
-    cdef int set_valid(self, bint* output, StateClass stcls) except -1:
+    cdef int set_valid(self, bint* output, StateClass stcls) nogil:
         cdef bint[N_MOVES] is_valid
         is_valid[SHIFT] = Shift.is_valid(stcls, -1)
         is_valid[REDUCE] = Reduce.is_valid(stcls, -1)
@@ -392,11 +391,8 @@ cdef class ArcEager(TransitionSystem):
         is_valid[RIGHT] = RightArc.is_valid(stcls, -1)
         is_valid[BREAK] = Break.is_valid(stcls, -1)
         cdef int i
-        n_valid = 0
         for i in range(self.n_moves):
             output[i] = is_valid[self.c[i].move]
-            n_valid += output[i]
-        assert n_valid >= 1
 
     cdef int set_costs(self, bint* is_valid, int* costs, 
                        StateClass stcls, GoldParse gold) except -1:

spacy/syntax/parser.pxd

@@ -6,9 +6,13 @@ from .arc_eager cimport TransitionSystem
 
 from ..tokens.doc cimport Doc
 from ..structs cimport TokenC
+from thinc.api cimport Example, ExampleC
+from .stateclass cimport StateClass
 
 
 cdef class Parser:
     cdef readonly object cfg
     cdef readonly Model model
     cdef readonly TransitionSystem moves
+
+    cdef void parse(self, StateClass stcls, ExampleC eg) nogil

spacy/syntax/parser.pyx

@@ -22,7 +22,7 @@ from thinc.typedefs cimport weight_t, class_t, feat_t, atom_t, hash_t
 
 from util import Config
 
-from thinc.api cimport Example
+from thinc.api cimport Example, ExampleC
 
 
 from ..structs cimport TokenC
@@ -41,6 +41,8 @@ from ._parse_features cimport CONTEXT_SIZE
 from ._parse_features cimport fill_context
 from .stateclass cimport StateClass
 
+from .._ml cimport arg_max_if_true
+
 
 DEBUG = False
 def set_debug(val):
@@ -65,6 +67,9 @@ def ParserFactory(transition_system):
     return lambda strings, dir_: Parser(strings, dir_, transition_system)
 
 
+DEF stack_class_alloc_limit = 256
+
+
 cdef class Parser:
     def __init__(self, StringStore strings, model_dir, transition_system):
         if not os.path.exists(model_dir):
@@ -83,18 +88,22 @@ cdef class Parser:
 
         cdef Example eg = Example(self.model.n_classes, CONTEXT_SIZE,
                                   self.model.n_feats, self.model.n_feats)
-        while not stcls.is_final():
-            memset(eg.c.scores, 0, eg.c.nr_class * sizeof(weight_t))
-        
-            self.moves.set_valid(<bint*>eg.c.is_valid, stcls)
-            fill_context(eg.c.atoms, stcls)
-            
-            self.model.predict(eg)
-
-            self.moves.c[eg.c.guess].do(stcls, self.moves.c[eg.c.guess].label)
-        self.moves.finalize_state(stcls)
+        with nogil:
+            self.parse(stcls, eg.c)
         tokens.set_parse(stcls._sent)
 
+    cdef void parse(self, StateClass stcls, ExampleC eg) nogil:
+        while not stcls.is_final():
+            memset(eg.scores, 0, eg.nr_class * sizeof(weight_t))
+
+            self.moves.set_valid(<bint*>eg.is_valid, stcls)
+            fill_context(eg.atoms, stcls)
+            self.model.set_scores(eg.scores, eg.atoms)
+            eg.guess = arg_max_if_true(eg.scores, eg.is_valid, self.model.n_classes)
+
+            self.moves.c[eg.guess].do(stcls, self.moves.c[eg.guess].label)
+        self.moves.finalize_state(stcls)
+
     def train(self, Doc tokens, GoldParse gold):
         self.moves.preprocess_gold(gold)
         cdef StateClass stcls = StateClass.init(tokens.data, tokens.length)

spacy/syntax/stateclass.pyx

@@ -52,11 +52,7 @@ cdef class StateClass:
         cdef const TokenC* target = &self._sent[i]
         if target.l_kids < idx:
             return -1
-<<<<<<< HEAD
         cdef const TokenC* ptr = &self._sent[target.l_edge]
-=======
-        cdef const TokenC* ptr = self._sent
->>>>>>> neuralnet
 
         while ptr < target:
             # If this head is still to the right of us, we can skip to it
@@ -82,11 +78,7 @@ cdef class StateClass:
         cdef const TokenC* target = &self._sent[i]
         if target.r_kids < idx:
             return -1
-<<<<<<< HEAD
         cdef const TokenC* ptr = &self._sent[target.r_edge]
-=======
-        cdef const TokenC* ptr = self._sent + (self.length - 1)
->>>>>>> neuralnet
         while ptr > target:
             # If this head is still to the right of us, we can skip to it
             # No token that's between this token and this head could be our

spacy/syntax/transition_system.pxd

@@ -34,9 +34,10 @@ cdef class TransitionSystem:
     cdef const Transition* c
     cdef bint* _is_valid
     cdef readonly int n_moves
+    cdef public int root_label
 
     cdef int initialize_state(self, StateClass state) except -1
-    cdef int finalize_state(self, StateClass state) except -1
+    cdef int finalize_state(self, StateClass state) nogil
 
     cdef int preprocess_gold(self, GoldParse gold) except -1
 
@@ -44,7 +45,7 @@ cdef class TransitionSystem:
 
     cdef Transition init_transition(self, int clas, int move, int label) except *
 
-    cdef int set_valid(self, bint* output, StateClass state) except -1
+    cdef int set_valid(self, bint* output, StateClass state) nogil
     
     cdef int set_costs(self, bint* is_valid, int* costs,
                        StateClass state, GoldParse gold) except -1

spacy/syntax/transition_system.pyx

@@ -27,11 +27,12 @@ cdef class TransitionSystem:
                 moves[i] = self.init_transition(i, int(action), label_id)
                 i += 1
         self.c = moves
+        self.root_label = self.strings['ROOT']
 
     cdef int initialize_state(self, StateClass state) except -1:
         pass
 
-    cdef int finalize_state(self, StateClass state) except -1:
+    cdef int finalize_state(self, StateClass state) nogil:
         pass
 
     cdef int preprocess_gold(self, GoldParse gold) except -1:
@@ -43,7 +44,7 @@ cdef class TransitionSystem:
     cdef Transition init_transition(self, int clas, int move, int label) except *:
         raise NotImplementedError
 
-    cdef int set_valid(self, bint* is_valid, StateClass stcls) except -1:
+    cdef int set_valid(self, bint* is_valid, StateClass stcls) nogil:
         cdef int i
         for i in range(self.n_moves):
             is_valid[i] = self.c[i].is_valid(stcls, self.c[i].label)