def histogram_deposition(current_indices_flat, currents_flat, grid_elements):
'''
function: histogram_deposition(current_indices_flat, currents_flat, grid)
inputs: current_indices_flat, currents_flat, grid_elements
current_indices_flat, currents_flat: They denote the indices and the currents
to be deposited on the flattened current vector.
grid_elements: The number of elements present the matrix/vector representing the
currents.
'''
# setting default indices and current for histogram deposition
indices_fix = af.data.range(grid_elements + 1, dtype=af.Dtype.s64)
currents_fix = 0 * af.data.range(grid_elements + 1, dtype=af.Dtype.f64)
# Concatenating the indices and currents in a single vector
combined_indices_flat = af.join(0, indices_fix, current_indices_flat)
combined_currents_flat = af.join(0, currents_fix, currents_flat)
# Sort by key operation
indices, currents = af.sort_by_key(combined_indices_flat,
combined_currents_flat,
dim=0)
# scan by key operation with default binary addition operation which sums up currents
# for the respective indices
Histogram_scan = af.scan_by_key(indices, currents)
# diff1 operation to determine the uniques indices in the current
diff1_op = af.diff1(indices, dim=0)
# Determining the uniques indices for current deposition
indices_unique = af.where(diff1_op > 0)
# Determining the current vector
J_flat = Histogram_scan[indices_unique]
af.eval(J_flat)
return J_flat
def sort_by_keys(keys: ndarray,
values: ndarray,
axis: int = -1,
ascending: bool = True) -> tp.Tuple[ndarray, ndarray]:
if keys.shape != values.shape:
raise ValueError("Keys and values must have the same dimensions.")
elif axis is None:
keys = keys.flatten()
values = values.flatten()
elif axis == -1:
axis = keys.ndim - 1
elif axis >= keys.ndim:
raise ValueError(f"Parameter axis must be between -1 and "
f"{keys.ndim - 1}")
ordered_values, ordered_keys \
= af.sort_by_key(values._af_array,
keys._af_array,
is_ascending=ascending)
return ndarray(ordered_keys), ndarray(ordered_values)
def simple_algorithm(verbose = False):
display_func = _util.display_func(verbose)
print_func = _util.print_func(verbose)
a = af.randu(3, 3)
print_func(af.sum(a), af.product(a), af.min(a), af.max(a),
af.count(a), af.any_true(a), af.all_true(a))
display_func(af.sum(a, 0))
display_func(af.sum(a, 1))
display_func(af.product(a, 0))
display_func(af.product(a, 1))
display_func(af.min(a, 0))
display_func(af.min(a, 1))
display_func(af.max(a, 0))
display_func(af.max(a, 1))
display_func(af.count(a, 0))
display_func(af.count(a, 1))
display_func(af.any_true(a, 0))
display_func(af.any_true(a, 1))
display_func(af.all_true(a, 0))
display_func(af.all_true(a, 1))
display_func(af.accum(a, 0))
display_func(af.accum(a, 1))
display_func(af.sort(a, is_ascending=True))
display_func(af.sort(a, is_ascending=False))
b = (a > 0.1) * a
c = (a > 0.4) * a
d = b / c
print_func(af.sum(d));
print_func(af.sum(d, nan_val=0.0));
display_func(af.sum(d, dim=0, nan_val=0.0));
val,idx = af.sort_index(a, is_ascending=True)
display_func(val)
display_func(idx)
val,idx = af.sort_index(a, is_ascending=False)
display_func(val)
display_func(idx)
b = af.randu(3,3)
keys,vals = af.sort_by_key(a, b, is_ascending=True)
display_func(keys)
display_func(vals)
keys,vals = af.sort_by_key(a, b, is_ascending=False)
display_func(keys)
display_func(vals)
c = af.randu(5,1)
d = af.randu(5,1)
cc = af.set_unique(c, is_sorted=False)
dd = af.set_unique(af.sort(d), is_sorted=True)
display_func(cc)
display_func(dd)
display_func(af.set_union(cc, dd, is_unique=True))
display_func(af.set_union(cc, dd, is_unique=False))
display_func(af.set_intersect(cc, cc, is_unique=True))
display_func(af.set_intersect(cc, cc, is_unique=False))
af.display(af.accum(a, 0)) af.display(af.accum(a, 1)) af.display(af.sort(a, is_ascending=True)) af.display(af.sort(a, is_ascending=False)) val, idx = af.sort_index(a, is_ascending=True) af.display(val) af.display(idx) val, idx = af.sort_index(a, is_ascending=False) af.display(val) af.display(idx) b = af.randu(3, 3) keys, vals = af.sort_by_key(a, b, is_ascending=True) af.display(keys) af.display(vals) keys, vals = af.sort_by_key(a, b, is_ascending=False) af.display(keys) af.display(vals) c = af.randu(5, 1) d = af.randu(5, 1) cc = af.set_unique(c, is_sorted=False) dd = af.set_unique(af.sort(d), is_sorted=True) af.display(cc) af.display(dd) af.display(af.set_union(cc, dd, is_unique=True)) af.display(af.set_union(cc, dd, is_unique=False))
af.print_array(af.accum(a, 0)) af.print_array(af.accum(a, 1)) af.print_array(af.sort(a, is_ascending=True)) af.print_array(af.sort(a, is_ascending=False)) val,idx = af.sort_index(a, is_ascending=True) af.print_array(val) af.print_array(idx) val,idx = af.sort_index(a, is_ascending=False) af.print_array(val) af.print_array(idx) b = af.randu(3,3) keys,vals = af.sort_by_key(a, b, is_ascending=True) af.print_array(keys) af.print_array(vals) keys,vals = af.sort_by_key(a, b, is_ascending=False) af.print_array(keys) af.print_array(vals) c = af.randu(5,1) d = af.randu(5,1) cc = af.set_unique(c, is_sorted=False) dd = af.set_unique(af.sort(d), is_sorted=True) af.print_array(cc) af.print_array(dd) af.print_array(af.set_union(cc, dd, is_unique=True)) af.print_array(af.set_union(cc, dd, is_unique=False))
def simple_algorithm(verbose=False):
display_func = _util.display_func(verbose)
print_func = _util.print_func(verbose)
a = af.randu(3, 3)
k = af.constant(1, 3, 3, dtype=af.Dtype.u32)
af.eval(k)
print_func(af.sum(a), af.product(a), af.min(a), af.max(a), af.count(a),
af.any_true(a), af.all_true(a))
display_func(af.sum(a, 0))
display_func(af.sum(a, 1))
rk = af.constant(1, 3, dtype=af.Dtype.u32)
rk[2] = 0
af.eval(rk)
display_func(af.sumByKey(rk, a, dim=0))
display_func(af.sumByKey(rk, a, dim=1))
display_func(af.productByKey(rk, a, dim=0))
display_func(af.productByKey(rk, a, dim=1))
display_func(af.minByKey(rk, a, dim=0))
display_func(af.minByKey(rk, a, dim=1))
display_func(af.maxByKey(rk, a, dim=0))
display_func(af.maxByKey(rk, a, dim=1))
display_func(af.anyTrueByKey(rk, a, dim=0))
display_func(af.anyTrueByKey(rk, a, dim=1))
display_func(af.allTrueByKey(rk, a, dim=0))
display_func(af.allTrueByKey(rk, a, dim=1))
display_func(af.countByKey(rk, a, dim=0))
display_func(af.countByKey(rk, a, dim=1))
display_func(af.product(a, 0))
display_func(af.product(a, 1))
display_func(af.min(a, 0))
display_func(af.min(a, 1))
display_func(af.max(a, 0))
display_func(af.max(a, 1))
display_func(af.count(a, 0))
display_func(af.count(a, 1))
display_func(af.any_true(a, 0))
display_func(af.any_true(a, 1))
display_func(af.all_true(a, 0))
display_func(af.all_true(a, 1))
display_func(af.accum(a, 0))
display_func(af.accum(a, 1))
display_func(af.scan(a, 0, af.BINARYOP.ADD))
display_func(af.scan(a, 1, af.BINARYOP.MAX))
display_func(af.scan_by_key(k, a, 0, af.BINARYOP.ADD))
display_func(af.scan_by_key(k, a, 1, af.BINARYOP.MAX))
display_func(af.sort(a, is_ascending=True))
display_func(af.sort(a, is_ascending=False))
b = (a > 0.1) * a
c = (a > 0.4) * a
d = b / c
print_func(af.sum(d))
print_func(af.sum(d, nan_val=0.0))
display_func(af.sum(d, dim=0, nan_val=0.0))
val, idx = af.sort_index(a, is_ascending=True)
display_func(val)
display_func(idx)
val, idx = af.sort_index(a, is_ascending=False)
display_func(val)
display_func(idx)
b = af.randu(3, 3)
keys, vals = af.sort_by_key(a, b, is_ascending=True)
display_func(keys)
display_func(vals)
keys, vals = af.sort_by_key(a, b, is_ascending=False)
display_func(keys)
display_func(vals)
c = af.randu(5, 1)
d = af.randu(5, 1)
cc = af.set_unique(c, is_sorted=False)
dd = af.set_unique(af.sort(d), is_sorted=True)
display_func(cc)
display_func(dd)
display_func(af.set_union(cc, dd, is_unique=True))
display_func(af.set_union(cc, dd, is_unique=False))
display_func(af.set_intersect(cc, cc, is_unique=True))
display_func(af.set_intersect(cc, cc, is_unique=False))
