Hello everyone,
I'm experimenting with OpenCL driven event programming.
I have a situation where the system hangs indefinitely while performing the cleanup of the whole system.
The target is a TeraScale 5 device, no GCN, I am using fglrx 15.10, and am creating a context for CPU familiy, and one for gpu familiy.
the function cleanup() in my software is supposed to:
-release all buffer objects,
-cleanup the devices,
-release the context
... for all contexts in the system.
this is my gdb output:
enqueueing AA for execution on 0 //the CPU
enqueueing AA for execution on 1 // the VLIW device
enqueueing AA for execution on 2 // the GCN device
received completion of kernel 2
result : ������� (this is an openCL bug in the openCL kernel, I'm working on it)
-4
-1
-1
-1
-1
-1
-1
Breakpoint 1, cleanup () at ./bf_deepsearch2.c:244
244 while(active_devices != 0) sleep(10);
(gdb) step
received completion of kernel 1
received completion of kernel 0
245 for(i = 0; i < num_of_platforms; i++) {
(gdb) step
246 clReleaseMemObject(input[0]);
(gdb) step
247 clReleaseMemObject(input[1]);
(gdb) step
248 clReleaseMemObject(input[2]);
(gdb) step
249 clReleaseMemObject(output);
(gdb) step
250 clReleaseProgram(program);
(gdb) step
251 clReleaseKernel(clkernel);
(gdb) step
252 for(j = 0; j < num_of_devices; j++) {
(gdb) step
253 clFlush(command_queue);
(gdb) step
254 clReleaseCommandQueue(command_queue);
(gdb) step
[Thread 0x7fffeae40700 (LWP 18023) exited]
[Thread 0x7fffebe55700 (LWP 18022) exited]
[Thread 0x7fffd9fd5700 (LWP 18027) exited]
[Thread 0x7fffc6fea700 (LWP 18029) exited]
[Thread 0x7fffb7fff700 (LWP 18031) exited]
[Thread 0x7fffe9e2b700 (LWP 18024) exited]
[Thread 0x7fffa6fea700 (LWP 18035) exited]
[Thread 0x7fff57fff700 (LWP 18049) exited]
[Thread 0x7fff56fea700 (LWP 18050) exited]
[Thread 0x7fff47fff700 (LWP 18052) exited]
[Thread 0x7fffb5fd5700 (LWP 18033) exited]
[Thread 0x7fffb6fea700 (LWP 18032) exited]
252 for(j = 0; j < num_of_devices; j++) {
(gdb) step
[Thread 0x7fff55fd5700 (LWP 18051) exited]
[Thread 0x7fffa7fff700 (LWP 18034) exited]
[Thread 0x7fffc5fd5700 (LWP 18030) exited]
[Thread 0x7fff46fea700 (LWP 18053) exited]
[Thread 0x7fff65fd5700 (LWP 18048) exited]
[Thread 0x7fff67fff700 (LWP 18046) exited]
[Thread 0x7fff66fea700 (LWP 18047) exited]
[Thread 0x7fff87fff700 (LWP 18040) exited]
[Thread 0x7fff75fd5700 (LWP 18045) exited]
[Thread 0x7fff76fea700 (LWP 18044) exited]
[Thread 0x7fff85fd5700 (LWP 18042) exited]
[Thread 0x7fffc7fff700 (LWP 18028) exited]
[Thread 0x7fff86fea700 (LWP 18041) exited]
[Thread 0x7fffa5fd5700 (LWP 18036) exited]
[Thread 0x7fffdafea700 (LWP 18026) exited]
[Thread 0x7fffebe96700 (LWP 18021) exited]
[Thread 0x7fffdbfff700 (LWP 18025) exited]
256 clReleaseContext(context);
(gdb) step
[Thread 0x7fff77fff700 (LWP 18043) exited]
[Thread 0x7fff97fff700 (LWP 18037) exited]
[Thread 0x7fff95fd5700 (LWP 18039) exited]
[Thread 0x7fff96fea700 (LWP 18038) exited]
257 free(command_queue);
(gdb) step
258 free(device_id);
(gdb) step
245 for(i = 0; i < num_of_platforms; i++) {
(gdb) step
246 clReleaseMemObject(input[0]);
(gdb) step
247 clReleaseMemObject(input[1]);
(gdb) step
248 clReleaseMemObject(input[2]);
(gdb) step
249 clReleaseMemObject(output);
(gdb) step
250 clReleaseProgram(program);
(gdb) step
251 clReleaseKernel(clkernel);
(gdb) step
252 for(j = 0; j < num_of_devices; j++) {
(gdb) print num_of_devices[1]
$1 = 2
(gdb) step
253 clFlush(command_queue);
(gdb) step
254 clReleaseCommandQueue(command_queue);
(gdb) step
any ideas? why does releaseCommandQueue hang indefinitely?
thanks
(and sorry for the long output, but as a newbie, I'm not supposed to make replies, apparently)
