merge changes from branch capture_more_changes

src/include/migraphx/program.hpp

@@ -126,9 +126,6 @@ struct program
     friend bool operator==(const program& x, const program& y);
     friend bool operator!=(const program& x, const program& y) { return !(x == y); }
 
-    std::shared_ptr<std::vector<std::pair<float, float>>> int8_quant_params =
-        std::make_shared<std::vector<std::pair<float, float>>>();
-
     private:
     void assign(const program& p);
 

src/include/migraphx/quantization.hpp

@@ -17,11 +17,12 @@ void quantize(program& prog);
 
 // insert the capture operator for the inputs of each operator to be quantized
 // to int8
-void capture_arguments(program& prog,
-                       const std::vector<std::string>& ins_names,
-                       const std::function<void(std::size_t, std::vector<argument>)>& func);
-void capture_arguments(program& prog, const std::vector<std::string>& ins_names);
-void capture_arguments(program& prog);
+std::size_t capture_arguments(program& prog,
+                              const std::vector<std::string>& ins_names,
+                              const std::function<void(std::size_t, std::vector<argument>)>& func);
+std::shared_ptr<std::vector<std::pair<float, float>>>
+capture_arguments(program& prog, const std::vector<std::string>& ins_names);
+std::shared_ptr<std::vector<std::pair<float, float>>> capture_arguments(program& prog);
 
 void quantize_int8(program& prog);
 void quantize_int8(program& prog, const std::vector<std::string>& ins_names);

src/program.cpp

@@ -112,8 +112,7 @@ void program::assign(const program& p)
     {
         impl->instructions.clear();
     }
-    impl->ctx         = p.impl->ctx;
-    int8_quant_params = p.int8_quant_params;
+    impl->ctx = p.impl->ctx;
 
     std::unordered_map<instruction_ref, instruction_ref> ins_map;
     for(auto ins : iterator_for(p))

src/py/migraphx_py.cpp

@@ -187,9 +187,6 @@ PYBIND11_MODULE(migraphx, m)
         migraphx::quantize(p, ins_names);
     });
     m.def("quantize", [](migraphx::program& p) { migraphx::quantize(p, {"all"}); });
-    m.def("quantize_int8", [](migraphx::program& p, std::vector<std::string>& ins_names) {
-        migraphx::quantize_int8(p, ins_names);
-    });
     m.def("quantize_int8",
           [](migraphx::program& p,
              std::vector<std::string>& ins_names,
@@ -201,12 +198,6 @@ PYBIND11_MODULE(migraphx, m)
     });
     m.def("quantize_int8", [](migraphx::program& p) { migraphx::quantize_int8(p); });
 
-    m.def("capture_arguments", [](migraphx::program& p, const std::vector<std::string>& ins_names) {
-        migraphx::capture_arguments(p, ins_names);
-    });
-
-    m.def("capture_arguments", [](migraphx::program& p) { migraphx::capture_arguments(p); });
-
 #ifdef HAVE_GPU
     m.def("allocate_gpu", &migraphx::gpu::allocate_gpu, py::arg("s"), py::arg("host") = false);
     m.def("to_gpu", &migraphx::gpu::to_gpu, py::arg("arg"), py::arg("host") = false);

src/quantization.cpp

@@ -421,9 +421,9 @@ void quantize_int8(program& prog)
 
 // For the input of each input argument, we need to insert a
 // capture operator to compute the scale and shift
-void capture_arguments(program& prog,
-                       const std::vector<std::string>& ins_names,
-                       const std::function<void(std::size_t, std::vector<argument>)>& func)
+std::size_t capture_arguments(program& prog,
+                              const std::vector<std::string>& ins_names,
+                              const std::function<void(std::size_t, std::vector<argument>)>& func)
 {
 
     size_t num_quant_params = 0;
@@ -464,34 +464,45 @@ void capture_arguments(program& prog,
         instruction::replace(ins, ins->get_operator(), ins->get_shape(), new_args);
     }
 
-    // set one pair of parameter for each argument
-    prog.int8_quant_params->resize(num_quant_params, std::make_pair(-1.0f, -1.0f));
+    return num_quant_params;
 }
 
-void capture_arguments(program& prog, const std::vector<std::string>& ins_names)
+std::shared_ptr<std::vector<std::pair<float, float>>>
+capture_arguments(program& prog, const std::vector<std::string>& ins_names)
 {
-    auto calc_quant_params = [&](std::size_t ins_index, std::vector<migraphx::argument> args) {
-        std::pair<float, float> param_pair{1.0f, 0.0f};
+    std::shared_ptr<std::vector<std::pair<float, float>>> int8_quant_params =
+        std::make_shared<std::vector<std::pair<float, float>>>();
+    std::shared_ptr<std::vector<float>> max_abs_vals = std::make_shared<std::vector<float>>();
+
+    auto calc_quant_params = [int8_quant_params, max_abs_vals](
+                                 std::size_t ins_index, std::vector<migraphx::argument> args) {
+        std::pair<float, float> param_pair{64.0f, 0.0f};
 
         // scale and shift is need for only int8 type, and we do not
         // consider shift, so set shift to 0
         std::vector<float> vec_val;
         args.front().visit([&](auto output) { vec_val.assign(output.begin(), output.end()); });
-        auto max_val = *std::max_element(vec_val.begin(), vec_val.end());
-        auto min_val = *std::min_element(vec_val.begin(), vec_val.end());
-        auto max_abs = std::max(std::fabs(max_val), std::fabs(min_val));
+        auto max_val                = *std::max_element(vec_val.begin(), vec_val.end());
+        auto min_val                = *std::min_element(vec_val.begin(), vec_val.end());
+        auto max_abs                = std::max(std::fabs(max_val), std::fabs(min_val));
+        max_abs_vals->at(ins_index) = std::max(max_abs_vals->at(ins_index), max_abs);
 
-        param_pair.first                     = 127.0f / max_abs;
-        (*prog.int8_quant_params)[ins_index] = param_pair;
+        param_pair.first                 = 127.0f / max_abs_vals->at(ins_index);
+        int8_quant_params->at(ins_index) = param_pair;
     };
 
-    capture_arguments(prog, ins_names, calc_quant_params);
+    auto num_params = capture_arguments(prog, ins_names, calc_quant_params);
+
+    int8_quant_params->resize(num_params, std::make_pair<float, float>(64.0f, 0.0f));
+    max_abs_vals->resize(num_params, 0.0f);
+
+    return int8_quant_params;
 }
 
-void capture_arguments(program& prog)
+std::shared_ptr<std::vector<std::pair<float, float>>> capture_arguments(program& prog)
 {
     std::vector<std::string> ins_names = {"dot", "convolution"};
-    capture_arguments(prog, ins_names);
+    return capture_arguments(prog, ins_names);
 }
 
 } // namespace MIGRAPHX_INLINE_NS