bench directory

[jinz2014]

It seems that the 'bench' is not available in the repo.

In addition, I got the following errors using ComputeCpp 1.1.4
/home/cc/SYCL-PRNG/examples/SYCL-RandomSeed.cpp:101:33: error: [Computecpp:CC0007]: cannot capture accessor<unsigned int, 1, cl::sycl::access::mode::read,
cl::sycl::access::target::host_buffer, cl::sycl::access::placeholder::false_t> in a SYCL kernel
auto seed = seeds[i];
^
/home/cc/SYCL-PRNG/examples/SYCL-RandomSeed.cpp:101:33: note: Cannot pass host accessor to SYCL kernel
/home/cc/SYCL-PRNG/examples/SYCL-RandomSeed.cpp:109:21: error: [Computecpp:CC0007]: cannot capture
accessor<prng::tiny_mersenne_twister_engine_64<3492747780, 4269866912, 8147695553149304826>, 1, cl::sycl::access::mode::write,
cl::sycl::access::target::host_buffer, cl::sycl::access::placeholder::false_t> in a SYCL kernel
engines[i] = engine; // copy CTOR
^
/home/cc/SYCL-PRNG/examples/SYCL-RandomSeed.cpp:109:21: note: Cannot pass host accessor to SYCL kernel
/home/cc/SYCL-PRNG/examples/SYCL-RandomSeed.cpp:123:33: error: [Computecpp:CC0007]: cannot capture accessor<unsigned int, 1, cl::sycl::access::mode::read,
cl::sycl::access::target::host_buffer, cl::sycl::access::placeholder::false_t> in a SYCL kernel
auto seed = seeds[i];
^

Thanks for your help

[MathiasMagnus]

Those errors arise because the cgh param is missing when the accessors are created in the handler scope. I already have that fixed in a dev branch. I couldn't come around to fixing all warnings and /permissive- errors before leaving for vacation, but will push my changes as soon as I get back. Jump algorithm for TINYMT64 should also be finished, I just wanted to test before pushing.

[MathiasMagnus]

Also, this (useful) error was introduced in a fairly new release of ComputeCpp which has not yet been deployed on our CI box. I'm slowly coming around fixing these long-standing issues. (The stories I could tell related to TinyMT jump... Took 2 days to get the Number Theory Library and TinyMTdc to build on Windows.)

[jinz2014]

Could you please explain the cause of the warning and error ?

_integer constant is so large that it is unsigned
struct kernel_info< ::kernels::invocation< ::prng::multiply_with_carry_engine_32<4294883355, 18446383549859758079>, ::kernels::skip> > {

Skip vs. step differs for N4prng31tiny_mersenne_twister_engine_64ILj3492747780ELj4269866912ELm8147695553149304826EEE when discarding 64 elements._

Thanks again

[MathiasMagnus]

The jump/skip alvos have not been thoroughly tested, so for the time being I would advise against using them (pre-alpha). If you have the capacity, I welcome any contribution that fixes bugs. I clearly marked the source projects, so anyone can jump in.

Providing sample data to match against is also welcome. The jump algos for STL generators are also defined by having to return an exact value upon a fixed distance jump.