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What is the canonical way to check for errors using the CUDA runtime API?

...on and wrapper macro like this: #define gpuErrchk(ans) { gpuAssert((ans), __FILE__, __LINE__); } inline void gpuAssert(cudaError_t code, const char *file, int line, bool abort=true) { if (code != cudaSuccess) { fprintf(stderr,"GPUassert: %s %s %d\n", cudaGetErrorString(code), file, lin...
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How to make a cross-module variable?

The __debug__ variable is handy in part because it affects every module. If I want to create another variable that works the same way, how would I do it? ...
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How can I make a time delay in Python? [duplicate]

...ly to delay a function from executing. For example: >>> def party_time(): ... print('hooray!') ... >>> sleep(3); party_time() hooray! "hooray!" is printed 3 seconds after I hit Enter. Example using sleep with multiple threads and processes Again, sleep suspends your thread...
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AfxGetMainWnd函数解惑 - C/C++ - 清泛网 - 专注C/C++及内核技术

...时也会失灵。不信, 你测试一下下面的代码: unsigned __stdcall SecondThreadFunc( void* pArguments ) { CMainFrame* pMainWnd = (CMainFrame*)AfxGetMainWnd(); if (NULL!=pMainWnd) { CView *pView = pMainWnd->GetActiveView(); if (NULL...
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Unmangling the result of std::type_info::name

... calling function. This should be relatively easy, standard C++ has a type_info class. This contains the name of the typeid'd class/function/etc. but it's mangled. It's not very useful. I.e. typeid(std::vector<int>).name() returns St6vectorIiSaIiEE . ...
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What optimizations can GHC be expected to perform reliably?

...1.0-6e4c9bdc36eeb9121f27ccbbcb62e3f3 wired-in package rts mapped to builtin_rts wired-in package template-haskell mapped to template-haskell-2.7.0.0-2bd128e15c2d50997ec26a1eaf8b23bf wired-in package dph-seq not found. wired-in package dph-par not found. Hsc static flags: -static *** Chasing dependen...
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Getting number of elements in an iterator in Python

...d work: >>> iter = (i for i in range(50)) >>> sum(1 for _ in iter) 50 Although it does iterate through each item and count them, it is the fastest way to do so. It also works for when the iterator has no item: >>> sum(1 for _ in range(0)) 0 Of course, it runs foreve...
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Change auto increment starting number?

In MySQL, I have a table, and I want to set the auto_increment value to 5 instead of 1 . Is this possible and what query statement does this? ...
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PHP “php://input” vs $_POST

I have been directed to use the method php://input instead of $_POST when interacting with Ajax requests from JQuery. What I do not understand is the benefits of using this vs the global method of $_POST or $_GET . ...
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How to automatically generate N “distinct” colors?

...uration [0, 100), lightness [0, 100) for(i = 0; i < 360; i += 360 / num_colors) { HSLColor c; c.hue = i; c.saturation = 90 + randf() * 10; c.lightness = 50 + randf() * 10; addColor(c); } share ...