What is the difference between accelerator's default accelerator_view and the normal accelerator_view created by accelerator::create_view()

Question

I run the test case of amptests_1.2.0/Tests/3_device_Modeling/3_2_Accelerator/3_2_5_members/create_view/test.cpp,

The part code is:

    runall_result result;
    accelerator acc = Test::require_device();

    accelerator_view av = acc.create_view();
    result &= REPORT_RESULT((av != acc.get_default_view()) == true);

Here i am not sure about the diference of av and  acc.get_default_view().

Answer 1

I run the test case of amptests_1.2.0/Tests/3_device_Modeling/3_2_Accelerator/3_2_5_members/create_view/test.cpp,

The part code is:

    runall_result result;
    accelerator acc = Test::require_device();

    accelerator_view av = acc.create_view();
    result &= REPORT_RESULT((av != acc.get_default_view()) == true);

Here i am not sure about the diference of av and  acc.get_default_view().

Hello,

Welcome to MSDN forum.

>>What is the difference between accelerator's default accelerator_view and the normal accelerator_view created by accelerator::create_view()

I think the difference between them is mainly about the queuing mode.Please take a look at the following information:

• The accelerator::create_view Method creates and returns an  accelerator_view object on this accelerator, using the specified queuing mode. When the queuing mode is not specified, the new accelerator_view uses the queuing_mode::immediate queuing mode.
• The accelerator::get_default_view Method returns the default  accelerator_view object  that is associated with the accelerator.

Best Regards,

Jane.

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Answer 2

Thanks for your help, i read CppAMPOpenSpecificationV12.pdf (line 912) and it said:
accelerator_view create_view();
Creates and returns a new accelerator view on the accelerator. Equivalent to “create_view(queuing_mode_automatic)”.
This puzzled me, now i believe  accelerator_view create_view() creates and returns an  accelerator_view object with the queuing_mode::immediate queuing mode.

BUT, from accelerator::create_view Method,  i saw

accelerator_view create_view(
   queuing_mode qmode = queuing_mode_automatic
);
does it should declared as below?
accelerator_view create_view(
   queuing_mode qmode = queuing_mode_immediate
);