Changeset 5d316e9 in sasmodels for sasmodels/core.py

Timestamp:

Dec 8, 2015 6:08:51 AM (8 years ago)

Author:

Paul Kienzle <pkienzle@…>

Branches:

master, core_shell_microgels, costrafo411, magnetic_model, release_v0.94, release_v0.95, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests

Children:

cf404cb

Parents:

eaca9eb

Message:

support fast and loose single precision and half precision

File:

• sasmodels/core.py (modified) (3 diffs)

sasmodels/core.py

@@ -65 +65 @@
     return True
 
-def load_model(model_definition, dtype="single", platform="ocl"):
+def load_model(model_definition, dtype="single", platform="ocl", fast=False):
     """
     Prepare the model for the default execution platform.
@@ -83 +83 @@
     *platform* should be "dll" to force the dll to be used for C models,
     otherwise it uses the default "ocl".
+
+    *fast* is True if fast inaccurate math is acceptable (40% speed increase).
     """
     if isstr(model_definition):
@@ -102 +104 @@
     if (platform=="dll"
             or not HAVE_OPENCL
-            or (dtype == np.float64 and not kernelcl.environment().has_double)):
+            or not kernelcl.environment().has_type(dtype)):
         return kerneldll.load_dll(source, info, dtype)
     else:
-        return kernelcl.GpuModel(source, info, dtype)
+        return kernelcl.GpuModel(source, info, dtype, fast)
 
 def make_kernel(model, q_vectors):