Clear windows branch; preserve previous contents in win-old

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ayo committed 2026-10-16 05:20:08 -04:00
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#include "hip_api.h"
#include <algorithm>
#include "cuda_api.h"
static constexpr char ptx[] = R"PTX(
.version 7.0
.target sm_75
.address_size 64
.visible .entry d4r_ptx_pattern(
.param .u64 output, .param .u32 count, .param .u32 seed)
{
.reg .pred %p;
.reg .b32 %r<8>;
.reg .b64 %rd<4>;
ld.param.u64 %rd0, [output];
ld.param.u32 %r0, [count];
ld.param.u32 %r1, [seed];
mov.u32 %r2, %ctaid.x;
mov.u32 %r3, %ntid.x;
mov.u32 %r4, %tid.x;
mad.lo.u32 %r5, %r2, %r3, %r4;
setp.ge.u32 %p, %r5, %r0;
@%p bra done;
mad.lo.u32 %r6, %r5, 1664525, %r1;
xor.b32 %r7, %r6, 0xa5a55a5a;
mul.wide.u32 %rd1, %r5, 4;
add.u64 %rd2, %rd0, %rd1;
st.global.u32 [%rd2], %r7;
done:
ret;
}
)PTX";
int main(int argc, char** argv)
{
using namespace d4r::diag;
start();
try {
Args args(argc, argv);
uint64_t identity = 0xcbf29ce484222325ull;
for (const char* c = ptx; *c; ++c) identity = (identity ^ uint8_t(*c)) * 0x100000001b3ull;
std::printf("PTX_IDENTITY kernel=d4r_ptx_pattern fnv1a64=%016llx\n", static_cast<unsigned long long>(identity));
if (args.cuda_dll.empty()) throw std::runtime_error("--cuda-dll is required (absolute ZLUDA nvcuda.dll path)");
if (args.context != "primary" && args.context != "created") throw std::runtime_error("context must be primary or created");
// Require the real HIP architecture, then match the CUDA device by PCI identity.
HipApi hip(args.hip_root);
hipDeviceProp_t props{};
hip.select_architecture(args.device, props);
CudaApi api(args.cuda_dll);
loaded_modules();
std::printf("STAGE cuInit\n");
api.check(api.cuInit(0), "cuInit");
int driver = 0, count = 0;
api.check(api.cuDriverGetVersion(&driver), "cuDriverGetVersion");
api.check(api.cuDeviceGetCount(&count), "cuDeviceGetCount");
std::printf("CUDA driver_api=%d devices=%d\n", driver, count);
CUdevice device = -1;
for (int ordinal = 0; ordinal < count; ++ordinal) {
CUdevice candidate;
api.check(api.cuDeviceGet(&candidate, ordinal), "cuDeviceGet");
char name[256]{};
int bus = -1, pci_device = -1, domain = -1;
api.check(api.cuDeviceGetName(name, sizeof(name), candidate), "cuDeviceGetName");
api.check(api.cuDeviceGetAttribute(&bus, 33, candidate), "cuDeviceGetAttribute(PCI_BUS_ID)");
api.check(api.cuDeviceGetAttribute(&pci_device, 34, candidate), "cuDeviceGetAttribute(PCI_DEVICE_ID)");
api.check(api.cuDeviceGetAttribute(&domain, 50, candidate), "cuDeviceGetAttribute(PCI_DOMAIN_ID)");
std::printf("CUDA GPU ordinal=%d name=%s pci=%04x:%02x:%02x\n", ordinal, name, domain, bus, pci_device);
if (bus == props.pciBusID && pci_device == props.pciDeviceID && domain == props.pciDomainID) device = candidate;
}
if (device < 0) throw std::runtime_error("CUDA/HIP PCI identity mismatch");
CUcontext context = nullptr;
const bool primary = args.context == "primary";
if (primary) {
api.check(api.cuDevicePrimaryCtxRetain(&context, device), "cuDevicePrimaryCtxRetain");
} else api.check(api.cuCtxCreate_v2(&context, 0, device), "cuCtxCreate_v2");
struct ContextCleanup {
CudaApi& api; CUcontext context; CUdevice device; bool primary;
~ContextCleanup() { if (context) { api.cuCtxSetCurrent(nullptr);
if (primary) api.cuDevicePrimaryCtxRelease_v2(device); else api.cuCtxDestroy_v2(context); } }
} cleanup{api, context, device, primary};
api.check(api.cuCtxSetCurrent(context), "cuCtxSetCurrent");
void* stream = nullptr;
using CreateStream = int(WINAPI*)(void**, unsigned);
using DestroyStream = int(WINAPI*)(void*);
DestroyStream destroyStream = nullptr;
if (std::getenv("D4R_DIAG_NONBLOCKING_STREAM")) {
const auto createStream = api.library.symbol<CreateStream>("cuStreamCreate");
destroyStream = api.library.symbol<DestroyStream>("cuStreamDestroy_v2");
api.check(createStream(&stream, 1), "cuStreamCreate(NON_BLOCKING)");
}
struct StreamCleanup {
void*& stream; DestroyStream destroy;
~StreamCleanup() { if (stream && destroy) destroy(stream); }
} streamCleanup{stream, destroyStream};
const bool queued = std::getenv("D4R_DIAG_QUEUE_PTX") != nullptr;
if (queued && !stream) throw std::runtime_error("Queued PTX diagnostic requires D4R_DIAG_NONBLOCKING_STREAM=1");
CUmodule module = nullptr;
std::printf("STAGE cuModuleLoadData (PTX JIT)\n");
api.check(api.cuModuleLoadData(&module, ptx), "cuModuleLoadData");
struct ModuleCleanup { CudaApi& api; CUmodule m; ~ModuleCleanup() { if (m) api.cuModuleUnload(m); } } mc{api, module};
loaded_modules();
CUfunction function = nullptr;
api.check(api.cuModuleGetFunction(&function, module, "d4r_ptx_pattern"), "cuModuleGetFunction");
constexpr uint32_t nmax = 4099;
std::vector<uint32_t> result(nmax + 61, 0xdeadbeefu);
const size_t bytes = result.size() * sizeof(uint32_t);
CUdeviceptr pointer = 0;
api.check(api.cuMemAlloc_v2(&pointer, bytes), "cuMemAlloc_v2");
struct MemCleanup { CudaApi& api; CUdeviceptr p; ~MemCleanup() { if (p) api.cuMemFree_v2(p); } } ac{api, pointer};
if (queued) api.check(api.cuMemcpyHtoD_v2(pointer, result.data(), bytes), "cuMemcpyHtoD_v2(queued sentinel)");
for (unsigned i = 0; i < args.iterations; ++i) {
uint32_t n = queued ? nmax : nmax - i % 129u, seed = 0x12345678u + i * 31u;
if (!queued) {
std::fill(result.begin(), result.end(), 0xdeadbeefu);
api.check(api.cuMemcpyHtoD_v2(pointer, result.data(), bytes), "cuMemcpyHtoD_v2(sentinel)");
}
void* parameters[] = {&pointer, &n, &seed};
api.check(api.cuLaunchKernel(function, (n + 127u) / 128u, 1, 1, 128, 1, 1,
0, stream, parameters, nullptr), "cuLaunchKernel");
if (queued && i + 1 != args.iterations) continue;
api.check(api.cuCtxSynchronize(), "cuCtxSynchronize");
api.check(api.cuMemcpyDtoH_v2(result.data(), pointer, bytes), "cuMemcpyDtoH_v2");
if (!verify(result, n, seed)) return 5;
}
api.check(api.cuMemFree_v2(pointer), "cuMemFree_v2"); ac.p = 0;
api.check(api.cuModuleUnload(module), "cuModuleUnload"); mc.m = nullptr;
if (stream) { api.check(destroyStream(stream), "cuStreamDestroy_v2"); stream = nullptr; }
api.check(api.cuCtxSetCurrent(nullptr), "cuCtxSetCurrent(NULL)");
if (primary) api.check(api.cuDevicePrimaryCtxRelease_v2(device), "cuDevicePrimaryCtxRelease_v2");
else api.check(api.cuCtxDestroy_v2(context), "cuCtxDestroy_v2");
cleanup.context = nullptr;
std::printf("PASS CUDA architecture=%s context=%s iterations=%u guard_verified=1 queued=%u\n", d4r::diag::HipApi::target_arch(),
args.context.c_str(), args.iterations, unsigned(queued));
return 0;
} catch (const std::exception& e) {
std::fprintf(stderr, "FAIL CUDA %s\n", e.what());
loaded_modules();
return 4;
}
}