Changes between Version 45 and Version 46 of AppCoprocessor

Timestamp:

Jul 30, 2014, 2:35:58 PM (11 years ago)

Author:

davea

Comment:

--

AppCoprocessor

@@ -36 +36 @@
 Call '''boinc_get_init_data()''' to get an APP_INIT_DATA structure;
 the device number (0, 1, ...) is in the '''gpu_device_num''' field.
-
 Old (pre-7.0.12) clients pass the device number via a command-line argument, '''--device N'''.
 In this case API_INIT_DATA::gpu_device_num will be -1,
 and your application must check its command-line args.
+So to be compatible with all clients, your app should do something like
+{{{
+int device_num;
+APP_INIT_DATA aid;
+boinc_get_init_data(aid);
+if (aid.gpu_device_num >= 0) {
+   device_num = aid.gpu_device_num;
+} else {
+   device_num = (scan argc/argv for --device argument);
+}
+}}}
 
-OpenCL apps should use 
+OpenCL apps don't need this; instead, use 
 the '''boinc_get_opencl_ids()''' API as described 
 [http://boinc.berkeley.edu/trac/wiki/OpenclApps here].