rocm-systems/catch/unit/deviceLib/fp16_ops.cc

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#include <hip/hip_fp16.h>

#include <algorithm>
#include <cmath>
#include <hip_test_common.hh>
#include <limits>

__global__ void fp16_arith_gpu(float* a, float* b, float* c) {
  c[0] = __half2float(__hadd(__float2half_rn(a[0]), __float2half_rn(b[0])));
  c[1] = __half2float(__hsub(__float2half_rn(a[1]), __float2half_rn(b[1])));
  c[2] = __half2float(__hmul(__float2half_rn(a[2]), __float2half_rn(b[2])));
  c[3] = __half2float(__hdiv(__float2half_rn(a[3]), __float2half_rn(b[3])));
  c[4] = __half2float(hfloor(__float2half_rn(a[4])));
  c[5] = __half2float(htrunc(__float2half_rn(a[5])));
  c[6] = __half2float(hceil(__float2half_rn(a[6])));
  c[7] = __half2float(hrint(__float2half_rn(a[7])));
  c[8] = __half2float(hsin(__float2half_rn(a[8])));
  c[9] = __half2float(hcos(__float2half_rn(a[9])));
  c[10] = __half2float(hexp(__float2half_rn(a[10])));
  c[11] = __half2float(hexp2(__float2half_rn(a[11])));
  c[12] = __half2float(hlog2(__float2half_rn(a[12])));
  c[13] = __half2float(hlog(__float2half_rn(a[13])));
  c[14] = __half2float(hlog10(__float2half_rn(a[14])));
  c[15] = __half2float(hsqrt(__float2half_rn(a[15])));
  c[16] = __half2float(__hneg(__float2half_rn(a[16])));
  c[17] = __half2float(hrcp(__float2half_rn(a[17])));
}

void fp16_arith_cpu(const std::vector<float>& a, const std::vector<float>& b,
                    std::vector<float>& c) {
  c[0] = a[0] + b[0];
  c[1] = a[0] - b[0];
  c[2] = a[0] * b[0];
  c[3] = a[0] / b[0];
  c[4] = std::floorf(a[4]);
  c[5] = std::truncf(a[5]);
  c[6] = std::ceilf(a[6]);
  c[7] = std::rintf(a[7]);
  c[8] = std::sinf(a[8]);
  c[9] = std::cosf(a[9]);
  c[10] = std::expf(a[10]);
  c[11] = std::exp2f(a[11]);
  c[12] = std::log2f(a[12]);
  c[13] = std::logf(a[13]);
  c[14] = std::log10f(a[14]);
  c[15] = std::sqrtf(a[15]);
  c[16] = -a[16];
  c[17] = 1.0f / a[17];
}

TEST_CASE("Unit_fp16_arith") {
  constexpr size_t num_of_ops = 18;
  constexpr size_t iters = 100;
  Catch::Generators::RandomFloatingGenerator<float> input1_gen(2.2f, 10.f);
  constexpr float input2 = 1.1f;
  for (size_t iter = 0; iter < iters; iter++) {
    auto input1 = input1_gen.get();

    std::vector<float> in1(num_of_ops, input1);
    std::vector<float> in2(num_of_ops, input2);
    float *din1, *din2, *dout;
    HIP_CHECK(hipMalloc(&dout, sizeof(float) * num_of_ops));
    HIP_CHECK(hipMalloc(&din1, sizeof(float) * num_of_ops));
    HIP_CHECK(hipMalloc(&din2, sizeof(float) * num_of_ops));

    HIP_CHECK(hipMemcpy(din1, in1.data(), sizeof(float) * in1.size(), hipMemcpyHostToDevice));
    HIP_CHECK(hipMemcpy(din2, in2.data(), sizeof(float) * in2.size(), hipMemcpyHostToDevice));

    fp16_arith_gpu<<<1, 1>>>(din1, din2, dout);
    std::vector<float> cpuout(num_of_ops, 0.0f);
    fp16_arith_cpu(in1, in2, cpuout);

    std::vector<float> out(num_of_ops, 0.0f);
    HIP_CHECK(hipMemcpy(out.data(), dout, sizeof(float) * out.size(), hipMemcpyDeviceToHost));

    for (size_t i = 0; i < out.size(); i++) {
      INFO("Iter: " << i << " In1: " << in1[i] << " CPU res: " << cpuout[i]
                    << " GPU res: " << out[i]);
      REQUIRE(out[i] == Approx(cpuout[i]).epsilon(0.1));
    }
    HIP_CHECK(hipFree(dout));
    HIP_CHECK(hipFree(din1));
    HIP_CHECK(hipFree(din2));
  }
}

__device__ void fp162_arith_impl(float2* a, float2* b, float2* c) {
  c[0] = __half22float2(__hadd2(__float22half2_rn(a[0]), __float22half2_rn(b[0])));
  c[1] = __half22float2(__hsub2(__float22half2_rn(a[1]), __float22half2_rn(b[1])));
  c[2] = __half22float2(__hmul2(__float22half2_rn(a[2]), __float22half2_rn(b[2])));
  c[3] = __half22float2(__h2div(__float22half2_rn(a[3]), __float22half2_rn(b[3])));
  c[4] = __half22float2(h2floor(__float22half2_rn(a[4])));
  c[5] = __half22float2(h2trunc(__float22half2_rn(a[5])));
  c[6] = __half22float2(h2ceil(__float22half2_rn(a[6])));
  c[7] = __half22float2(h2rint(__float22half2_rn(a[7])));
  c[8] = __half22float2(h2sin(__float22half2_rn(a[8])));
  c[9] = __half22float2(h2cos(__float22half2_rn(a[9])));
  c[10] = __half22float2(h2exp(__float22half2_rn(a[10])));
  c[11] = __half22float2(h2exp2(__float22half2_rn(a[11])));
  c[12] = __half22float2(h2log2(__float22half2_rn(a[12])));
  c[13] = __half22float2(h2log(__float22half2_rn(a[13])));
  c[14] = __half22float2(h2log10(__float22half2_rn(a[14])));
  c[15] = __half22float2(h2sqrt(__float22half2_rn(a[15])));
  c[16] = __half22float2(__hneg2(__float22half2_rn(a[16])));
  c[17] = __half22float2(h2rcp(__float22half2_rn(a[17])));
}

__global__ void fp162_arith_gpu(float2* a, float2* b, float2* c) { fp162_arith_impl(a, b, c); }

void fp162_arith_cpu(std::vector<float2>& a, std::vector<float2>& b, std::vector<float2>& c) {
  c[0] = a[0] + b[0];
  c[1] = a[1] - b[1];
  c[2] = a[2] * b[2];
  c[3] = a[3] / b[3];
  c[4] = {std::floorf(a[4].x), std::floorf(a[4].y)};
  c[5] = {std::truncf(a[5].x), std::truncf(a[5].y)};
  c[6] = {std::ceilf(a[6].x), std::ceilf(a[6].y)};
  c[7] = {std::rintf(a[7].x), std::rintf(a[7].y)};
  c[8] = {std::sinf(a[8].x), std::sinf(a[8].y)};
  c[9] = {std::cosf(a[9].x), std::cosf(a[9].y)};
  c[10] = {std::expf(a[10].x), std::expf(a[10].y)};
  c[11] = {std::exp2f(a[11].x), std::exp2f(a[11].y)};
  c[12] = {std::log2f(a[12].x), std::log2f(a[12].y)};
  c[13] = {std::logf(a[13].x), std::logf(a[13].y)};
  c[14] = {std::log10f(a[14].x), std::log10f(a[14].y)};
  c[15] = {std::sqrtf(a[15].x), std::sqrtf(a[15].y)};
  c[16] = {-a[16].x, -a[16].y};
  c[17] = {1.0f / a[17].x, 1.0f / a[17].y};
}

TEST_CASE("Unit_fp162_arith") {
  constexpr size_t num_of_ops = 18;
  constexpr size_t iters = 100;
  Catch::Generators::RandomFloatingGenerator<float> input1_gen(2.2f, 10.f);
  for (size_t iter = 0; iter < iters; iter++) {
    auto input1 = input1_gen.get();
    auto input2 = input1_gen.get();

    std::vector<float2> in1(num_of_ops, float2{input1, input2});
    std::vector<float2> in2(num_of_ops, float2{input1_gen.get(), input1_gen.get()});
    float2 *din1, *din2, *dout;
    HIP_CHECK(hipMalloc(&dout, sizeof(float2) * num_of_ops));
    HIP_CHECK(hipMalloc(&din1, sizeof(float2) * num_of_ops));
    HIP_CHECK(hipMalloc(&din2, sizeof(float2) * num_of_ops));

    HIP_CHECK(hipMemcpy(din1, in1.data(), sizeof(float2) * in1.size(), hipMemcpyHostToDevice));
    HIP_CHECK(hipMemcpy(din2, in2.data(), sizeof(float2) * in2.size(), hipMemcpyHostToDevice));

    fp162_arith_gpu<<<1, 1>>>(din1, din2, dout);
    std::vector<float2> cpuout(num_of_ops, float2{0.0f, 0.0f});
    fp162_arith_cpu(in1, in2, cpuout);

    std::vector<float2> out(num_of_ops, float2{0.0f, 0.0f});
    HIP_CHECK(hipMemcpy(out.data(), dout, sizeof(float2) * out.size(), hipMemcpyDeviceToHost));

    for (size_t i = 0; i < out.size(); i++) {
      INFO("Iter: " << i << " In1: " << in1[i].x << " - " << in1[i].y << " CPU res: " << cpuout[i].x
                    << " - " << cpuout[i].y << " GPU res: " << out[i].x << " - " << out[i].y);
      REQUIRE(out[i].x == Approx(cpuout[i].x).epsilon(0.1));
      REQUIRE(out[i].y == Approx(cpuout[i].y).epsilon(0.1));
    }
    HIP_CHECK(hipFree(dout));
    HIP_CHECK(hipFree(din1));
    HIP_CHECK(hipFree(din2));
  }
}