how to change h.parallel_for(range(M, P), [=](auto index) to single_task function

Hi Wei-Chih,

Sorry for late reply.

I may not understand the written code that you are trying to work with.

Can you provide more decription on the operation that you are trying to work on?

I think you can split your task using a normal for loop as compared to using parallel_for:

Brief example as below:

// Computes the product of two square matrices.

void matrix_multiply(double** m1, double** m2, double** result, size_t size)

{

for (size_t i = 0; i < size; i++)

{

for (size_t j = 0; j < size; j++)

{

double temp = 0;

for (int k = 0; k < size; k++)

{

temp += m1[i][k] * m2[k][j];

}

result[i][j] = temp;

}

}

}

// Computes the product of two square matrices in parallel.

void parallel_matrix_multiply(double** m1, double** m2, double** result, size_t size)

{

parallel_for (size_t(0), size, [&](size_t i)

{

for (size_t j = 0; j < size; j++)

{

double temp = 0;

for (int k = 0; k < size; k++)

{

temp += m1[i][k] * m2[k][j];

}

result[i][j] = temp;

}

});

}

There is this document that might help to consider how your code will be written:

https://www.colfax-intl.com/downloads/oneAPI_module04_DPCplusplusFundamentals2of2.pdf

Thanks.

Regards,

Aik Eu