def test_no_pool_error():
target = Target("c")
tiny_workspace_pool = usmp_utils.PoolInfo(
pool_name="tiny_workspace",
target_access={target: usmp_utils.PoolInfo.READ_WRITE_ACCESS},
size_hint_bytes=10,
)
bi_a = usmp_utils.BufferInfo(name_hint="bi_a",
size_bytes=10,
pool_candidates=[tiny_workspace_pool])
bi_b = usmp_utils.BufferInfo(name_hint="bi_b",
size_bytes=10,
pool_candidates=[tiny_workspace_pool])
bi_c = usmp_utils.BufferInfo(name_hint="bi_c",
size_bytes=10,
pool_candidates=[tiny_workspace_pool])
bi_a.set_conflicts([bi_b])
bi_b.set_conflicts([bi_c])
bi_c.set_conflicts([bi_a])
buffer_info_arr = [bi_a, bi_b, bi_c]
fusmp_algo = tvm.get_global_func(f"tir.usmp.algo.greedy_by_size")
with pytest.raises(
tvm.TVMError,
match=
"TVM USMP Error: the space available in the provided pools exceeded"
):
buffer_pool_allocations = fusmp_algo(buffer_info_arr, 0)
def _test():
target = Target("c")
global_workspace_pool = usmp_utils.PoolInfo(
pool_name="global_workspace",
target_access={target: usmp_utils.PoolInfo.READ_WRITE_ACCESS},
)
bi_a = usmp_utils.BufferInfo(name_hint="bi_a",
size_bytes=10,
pool_candidates=[global_workspace_pool])
bi_b = usmp_utils.BufferInfo(name_hint="bi_b",
size_bytes=10,
pool_candidates=[global_workspace_pool])
bi_c = usmp_utils.BufferInfo(name_hint="bi_c",
size_bytes=10,
pool_candidates=[global_workspace_pool])
bi_a.set_conflicts([bi_b, bi_c])
bi_b.set_conflicts([bi_c, bi_a])
bi_c.set_conflicts([bi_a, bi_b])
buffer_info_arr = [bi_a, bi_b, bi_c]
fusmp_algo = tvm.get_global_func(f"tir.usmp.algo.{algorithm}")
buffer_pool_allocations = fusmp_algo(buffer_info_arr, 0)
assert buffer_pool_allocations[bi_a].byte_offset == 20
assert buffer_pool_allocations[bi_b].byte_offset == 10
assert buffer_pool_allocations[bi_c].byte_offset == 0
def test_linear(algorithm, workspace_size):
"""
The test case here represent BufferInfo objects
that could get generated for a linear sequence
such as :
(Op A)
|
bi_a
|
(Op B)
|
bi_b
|
.
.
.
(Op F)
|
bi_f
"""
target = Target("c")
global_workspace_pool = usmp_utils.PoolInfo(
pool_name="global_workspace",
target_access={target: usmp_utils.PoolInfo.READ_WRITE_ACCESS},
)
bi_a = usmp_utils.BufferInfo(name_hint="bi_a",
size_bytes=10,
pool_candidates=[global_workspace_pool])
bi_b = usmp_utils.BufferInfo(name_hint="bi_b",
size_bytes=20,
pool_candidates=[global_workspace_pool])
bi_c = usmp_utils.BufferInfo(name_hint="bi_c",
size_bytes=100,
pool_candidates=[global_workspace_pool])
bi_d = usmp_utils.BufferInfo(name_hint="bi_d",
size_bytes=40,
pool_candidates=[global_workspace_pool])
bi_e = usmp_utils.BufferInfo(name_hint="bi_e",
size_bytes=50,
pool_candidates=[global_workspace_pool])
bi_f = usmp_utils.BufferInfo(name_hint="bi_f",
size_bytes=50,
pool_candidates=[global_workspace_pool])
# Creating conflicts for a linear graph
bi_a.set_conflicts([bi_b])
bi_b.set_conflicts([bi_a, bi_c])
bi_c.set_conflicts([bi_b, bi_d])
bi_d.set_conflicts([bi_c, bi_e])
bi_e.set_conflicts([bi_d, bi_f])
bi_f.set_conflicts([bi_e])
buffer_info_arr = [bi_a, bi_b, bi_c, bi_d, bi_e, bi_f]
fusmp_algo = tvm.get_global_func(f"tir.usmp.algo.{algorithm}")
buffer_pool_allocations = fusmp_algo(buffer_info_arr, 0)
_check_max_workspace_size(buffer_pool_allocations, global_workspace_pool,
workspace_size)
def test_fanout(algorithm, workspace_size):
"""
The test case here represent BufferInfo objects
that could get generated for a fanout topology
such as :
(Op A)
|
bi_a ---------
| |
(Op B) (Op C)
| |
bi_b bi_c
| |
(Op D) (Op E)
| |
bi_d bi_e
| |
(Op F) ------
|
bi_f
|
(Op G)
|
bi_g
"""
target = Target("c")
global_workspace_pool = WorkspacePoolInfo(
"global_workspace",
targets=[target],
)
bi_a = usmp_utils.BufferInfo(
name_hint="bi_a", size_bytes=10, pool_candidates=[global_workspace_pool]
)
bi_b = usmp_utils.BufferInfo(
name_hint="bi_b", size_bytes=20, pool_candidates=[global_workspace_pool]
)
bi_c = usmp_utils.BufferInfo(
name_hint="bi_c", size_bytes=100, pool_candidates=[global_workspace_pool]
)
bi_d = usmp_utils.BufferInfo(
name_hint="bi_d", size_bytes=40, pool_candidates=[global_workspace_pool]
)
bi_e = usmp_utils.BufferInfo(
name_hint="bi_e", size_bytes=50, pool_candidates=[global_workspace_pool]
)
bi_f = usmp_utils.BufferInfo(
name_hint="bi_f", size_bytes=60, pool_candidates=[global_workspace_pool]
)
bi_g = usmp_utils.BufferInfo(
name_hint="bi_g", size_bytes=70, pool_candidates=[global_workspace_pool]
)
# Creating conflicts for a linear graph
bi_a.set_conflicts([bi_b, bi_c])
bi_b.set_conflicts([bi_a, bi_c, bi_e])
bi_c.set_conflicts([bi_e, bi_a, bi_b, bi_d])
bi_d.set_conflicts([bi_b, bi_f, bi_c, bi_e])
bi_e.set_conflicts([bi_c, bi_f, bi_b, bi_d])
bi_f.set_conflicts([bi_d, bi_e, bi_f])
bi_g.set_conflicts([bi_f])
buffer_info_arr = [bi_a, bi_b, bi_c, bi_d, bi_e, bi_f, bi_g]
fusmp_algo = tvm.get_global_func(f"tir.usmp.algo.{algorithm}")
buffer_pool_allocations = fusmp_algo(buffer_info_arr, 0)
_check_max_workspace_size(buffer_pool_allocations, global_workspace_pool, workspace_size)