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src/Mod/Ship/simRun/clSim/clUtils.py

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+#***************************************************************************
+#*                                                                         *
+#*   Copyright (c) 2011, 2012                                              *
+#*   Jose Luis Cercos Pita <jlcercos@gmail.com>                            *
+#*                                                                         *
+#*   This program is free software; you can redistribute it and/or modify  *
+#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
+#*   as published by the Free Software Foundation; either version 2 of     *
+#*   the License, or (at your option) any later version.                   *
+#*   for detail see the LICENCE text file.                                 *
+#*                                                                         *
+#*   This program is distributed in the hope that it will be useful,       *
+#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+#*   GNU Library General Public License for more details.                  *
+#*                                                                         *
+#*   You should have received a copy of the GNU Library General Public     *
+#*   License along with this program; if not, write to the Free Software   *
+#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+#*   USA                                                                   *
+#*                                                                         *
+#***************************************************************************
+
+# FreeCAD
+from shipUtils import Paths
+
+# pyOpenCL
+import pyopencl as cl
+import numpy as np
+
+# Standard
+import math
+
+def loadProgram(context, file):
+    """ Loads a file and comnpile it.
+    @param context OpenCL context where apply.
+    @param file File to load and compile.
+    @return Ready to use OpenCL program.
+    """
+    f = open(file, 'r')
+    str = "".join(f.readlines())
+    return cl.Program(context, str).build()
+
+def path():
+    """ Gets the OpenCL kernels path
+    @return OpenCL kernels path
+    """
+    path = Paths.modulePath() + "/resources/opencl"
+    return path
+
+def globalSize(n):
+    """ Compute global size from amount of data.
+    @param n Amount of data.
+    @return global size.
+    """
+    localSize = 256.0
+    return int(math.ceil(n/localSize)*localSize)
+