I've got a test case where I have a class with 3 subobjects (A, B and C), and the 2nd subobject Bthrows an exception during construction. As I understand C++, the compiler should rewind the construction of the big class and destroy the 1st object A, but not the 2nd (B) or 3rd (C) objects.
I tried to use the OpenMP declare reduction pragma for an implementation of an array reduction. The code compiles fine using g++ 4.9 and produces correct results. However, using icpc-16.0.038 gives an internal error 20000_0. I attached a small code example.
Traditional OpenMP* is a fork-join parallel programming technology. First, program runs with a single master thread which is serial code, later, master thread assigns sub-tasks on created multiple threads where are in parallel region, master thread waits until all threads complete sub-tasks to meet at a barrier then be terminated, then master thread continue to run serial code again.
Compiling pcl-1.7.2 with intel c++ compiler 220.127.116.11 Build 20150407 on Windows failed with errors related to Eigen-3.2.4.
I was able to reduce the problem to the following code snippet. It uses an integer constant as parameter of a template type. This type is used as the return type of a template classes member function. The intel c++ compiler reports a mismatch between declaration and definition of this member function. But Microsoft compiler, gcc and I agree, that there is no mismatch. Is this an intel c++ compiler problem?
I'm developing a realtime audio processing software. There may be several (for example even 100) processors at each moment, in several parallel chains. I cannot let the processors cooperate and must assume any possible sequence of processing. Each of them receives a block of data usually 256-1024 values and needs to process them as quickly as possible, so that the results may be passed to the next item in chain. If the data is not delivered in time, bad things happen... But in many cases just a few processors may be used and the goal is to keep general CPU usage minimal then.
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