What does x.contiguous () do for a tensor x?A one-dimensional array [0, 1, 2, 3, 4] is contiguous if its items are laid out in memory next to each other just like ...
A contiguous array is just an array stored in an unbroken block of memory: to access the next value in the array, we just move to the next memory address. Consider the 2D array arr = np.arange(12).reshape(3,4). It looks like this: In the computer's memory, the values of arr are stored like this: This means arr is a C contiguous array because the rows are stored as contiguous blocks of memory ...
This is a contiguous memory block of five bytes, spanning from location 1 to location 5: It represents bytes (colored light blue) that are together in memory with no gap bytes (white) between them. This is a non-contiguous set of five bytes of interest: It is fragmented into three groups of bytes (colored yellow) with gap bytes at locations 4 and 6. Starting at location 1 there is a contiguous ...
In general, if you have non-contiguous tensor t, you can make it contiguous by calling t = t.contiguous(). If t is contiguous, call to t.contiguous() is essentially a no-op, so you can do that without risking a big performance hit.
First of all contiguous memory means a chunk of memory allocated without any gaps in the addresses it occupies. It will be one single "block" of memory. Contiguous memory in C++ would mean various ways of allocating contiguous memory in C++. One simple way is arrays as in C int a[10] STL containers like std::vector and std::array (C++11) would also allocate contiguous memory.
A production line that makes sweet rolls first takes one, infinitely long, contiguous roll, and then chops it into separate, bite-sized rolls, packing consecutive small rolls into packages.
Lastly contiguous memory is typically a concern of high-performance native applications. In Java memory is managed by the JVM and is borrowed from the underlying OS, in turn from the hardware, or even virtualized hardware.
Still not very clear. Subarray = "any part or section of an array", contiguous = "sharing a common border; touching". Is contiguous referring to the array indices or the values? Please explain what exactly is contiguous about the three subarrays you supplied.
Here we can easily see that .contiguous() method created contiguous tensor from non-contiguous tensor while deepcopy method just copied the data without converting it to contiguous tensor.
