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Fix dppl_with_context example #69

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reazulhoque merged 1 commit into from
Oct 8, 2020
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Fix dppl_with_context example #69

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2 changes: 1 addition & 1 deletion numba/dppl/dppl_lowerer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1095,7 +1095,7 @@ def lower_parfor_rollback(lowerer, parfor):
msg = "Parfor lowered on DPPL-device"
print(msg, parfor.loc)
except Exception as e:
msg = "Failed to lower parfor on DPPL-device.\nTo see details set environment variable NUMBA_DEBUG=1"
msg = "Failed to lower parfor on DPPL-device.\nTo see details set environment variable NUMBA_DPPL_DEBUG=1"
warnings.warn(NumbaPerformanceWarning(msg, parfor.loc))
raise e
finally:
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21 changes: 9 additions & 12 deletions numba/dppl/examples/dppl_with_context.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,31 +2,28 @@
from numba import dppl, njit, prange
import dpctl


@njit
def g(a):
return a + 1

def add_two_arrays(b, c):
a = np.empty_like(b)
for i in prange(len(b)):
a[i] = b[i] + c[i]

#@njit(parallel={'offload':True})
@njit
def f(a, b, c, N):
for i in prange(N):
a[i] = b[i] + g(c[i])
return a


def main():
N = 10
a = np.ones(N)
b = np.ones(N)
c = np.ones(N)

if dpctl.has_gpu_queues():
with dpctl.device_context("opencl:gpu"):
f(a, b, c, N)
gpu_result = add_two_arrays(b, c)
print('GPU device found. Result on GPU:', gpu_result)
elif dpctl.has_cpu_queues():
with dpctl.device_context("opencl:cpu"):
f(a, b, c, N)
cpu_result = add_two_arrays(b, c)
print('CPU device found. Result on CPU:', cpu_result)
else:
print("No device found")

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