Configure debugging environment

  1. Activate the debugger and compiler:

    export ONEAPI_ROOT=/path/to/oneapi
source $ONEAPI_ROOT/debugger/latest/env/vars.sh
source $ONEAPI_ROOT/compiler/latest/env/vars.sh

  2. Create and activate conda environment:

    conda create -n debug-env numba-dpex
conda activate debug-env

  3. Activate NEO drivers (optional).

    If you want to use the local NEO driver, activate the variables for it. See the NEO driver.

  4. Check debugging environment.

    You can check the correctness of the work with the following example:

    15import dpctl
16import numpy as np
17
18import numba_dpex as dppy
19
20
21@dppy.kernel(debug=True)
22def data_parallel_sum(a, b, c):
23    i = dppy.get_global_id(0)
24    c[i] = a[i] + b[i]  # Condition breakpoint location
25
26
27global_size = 10
28N = global_size
29
30a = np.array(np.random.random(N), dtype=np.float32)
31b = np.array(np.random.random(N), dtype=np.float32)
32c = np.ones_like(a)
33
34device = dpctl.SyclDevice("opencl:gpu")
35with dpctl.device_context(device):
36    data_parallel_sum[global_size, dppy.DEFAULT_LOCAL_SIZE](a, b, c)
37
38print("Done...")

    Launch the Intel® Distribution for GDB* and set a breakpoint in the kernel:

    $ gdb-oneapi -q --args python simple_sum.py
(gdb) break simple_sum.py:22
No source file named simple_sum.py.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (simple_sum.py:22) pending.
(gdb) run

    In the output you can see that the breakpoint was hit successfully:

    Thread 2.2 hit Breakpoint 1, with SIMD lanes [0-7], __main__::data_parallel_sum () at simple_sum.py:22
22           i = dppy.get_global_id(0)
(gdb) continue
Done...
...