CUDA Programming: Complete syntax of CUDA Kernels - Blogger Declare shared memory in CUDA Fortran using the shared variable qualifier in device code. Each thread block has shared memory visible to all threads of the block and with the same lifetime as the block (the 3rd parameter of launching kernel identifies the amount of shared memory, please refer Kernel execution configuration ). I was very disappointed when I was not able to find the complete syntax of CUDA Kernels. Achieved Occupancy - NVIDIA Developer Efficient use of shared memory - CUDA Programming and Performance ... The I type parameter indicates the kind of interpolation that happens when indexing . Kernel 1 Sequential Blocks. HIP introduces a standard C++ calling convention to pass the execution configuration to the kernel (this convention replaces the Cuda <<< >>> syntax). It is a no-op for CUDA tensors as described in the docs. For making full use of GPU capabilities it . Memory hierarchy · CUDA Little Book - nanxiao.gitbooks.io The supported cache configurations are: cudaFuncCachePreferNone: no preference for shared memory or L1 (default) Hi all, I have a question about the shared memory and CUDA occupancy calculator. (cuda-gdb) p shared $1 = 0x40 <Address 0x40 out of bounds> (cuda-gdb) p test_shared $2 = (@global float * @register) 0x40 /* step program until all threads write to shared memory */ (cuda-gdb) p test_shared [0] $3 = 1.72208689e-22 (cuda-gdb) p test_shared [1] $4 = 3.33029199 Returns an array with its content uninitialized. Declare shared memory in CUDA C/C++ device code using the __shared__ variable declaration specifier. The parameters A, B, and C all point to buffers of global memory.. . • Parameter passing is similar to C. • There exists a separate set of host + device memory. How to Access Global Memory Efficiently in CUDA Fortran Kernels The arguments to the execution configuration are evaluated before the actual function arguments and like the function arguments, are currently passed via shared memory to the device. Best Practices Guide :: CUDA Toolkit Documentation PDF Introduction to the CUDA Programming Language