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29 //
30 // This example illustrates using multiple EOs to process a single frame
31 // For details, refer http://downloads.ti.com/mctools/esd/docs/tidl-api/
32 //
33 #include <signal.h>
34 #include <iostream>
35 #include <fstream>
36 #include <cassert>
37 #include <string>
39 #include "executor.h"
40 #include "execution_object.h"
41 #include "execution_object_pipeline.h"
42 #include "configuration.h"
43 #include "utils.h"
45 using namespace tidl;
46 using std::string;
47 using std::unique_ptr;
48 using std::vector;
50 using EOP = tidl::ExecutionObjectPipeline;
52 bool Run(int num_eve,int num_dsp, const char* ref_output);
54 Executor* CreateExecutor(DeviceType dt, int num, const Configuration& c,
55 int layer_group_id);
58 int main(int argc, char *argv[])
59 {
60 // Catch ctrl-c to ensure a clean exit
61 signal(SIGABRT, exit);
62 signal(SIGTERM, exit);
64 // This example requires both EVE and C66x
65 uint32_t num_eve = Executor::GetNumDevices(DeviceType::EVE);
66 uint32_t num_dsp = Executor::GetNumDevices(DeviceType::DSP);
67 if (num_eve == 0 || num_dsp == 0)
68 {
69 std::cout << "TI DL not supported on this SoC." << std::endl;
70 return EXIT_SUCCESS;
71 }
73 string ref_file ="../test/testvecs/reference/j11_v2_ref.bin";
74 unique_ptr<const char> reference_output(ReadReferenceOutput(ref_file));
76 bool status = Run(num_eve, num_dsp, reference_output.get());
78 if (!status)
79 {
80 std::cout << "FAILED" << std::endl;
81 return EXIT_FAILURE;
82 }
84 std::cout << "PASSED" << std::endl;
85 return EXIT_SUCCESS;
86 }
88 bool Run(int num_eve, int num_dsp, const char* ref_output)
89 {
90 string config_file ="../test/testvecs/config/infer/tidl_config_j11_v2.txt";
92 Configuration c;
93 if (!c.ReadFromFile(config_file))
94 return false;
96 // Heap sizes for this network determined using Configuration::showHeapStats
97 c.PARAM_HEAP_SIZE = (3 << 20); // 3MB
98 c.NETWORK_HEAP_SIZE = (20 << 20); // 20MB
100 c.numFrames = 16;
102 // Assign layers 12, 13 and 14 to layer group 2
103 c.layerIndex2LayerGroupId = { {12, 2}, {13, 2}, {14, 2} };
105 // Open input file for reading
106 std::ifstream input(c.inData, std::ios::binary);
108 bool status = true;
109 try
110 {
111 // Create Executors - use all the DSP and EVE cores available
112 // Layer group 1 will be executed on EVE, 2 on DSP
113 unique_ptr<Executor> eve(CreateExecutor(DeviceType::EVE,num_eve,c,1));
114 unique_ptr<Executor> dsp(CreateExecutor(DeviceType::DSP,num_dsp,c,2));
116 // Create pipelines. Each pipeline has 1 EVE and 1 DSP. If there are
117 // more EVEs than DSPs, the DSPs are shared across multiple
118 // pipelines. E.g.
119 // 2 EVE, 2 DSP: EVE1 -> DSP1, EVE2 -> DSP2
120 // 4 EVE, 2 DSP: EVE1 -> DSP1, EVE2 -> DSP2, EVE3 -> DSP1, EVE4 ->DSP2
121 std::vector<EOP *> EOPs;
122 uint32_t num_pipe = std::max(num_eve, num_dsp);
123 for (uint32_t i = 0; i < num_pipe; i++)
124 EOPs.push_back(new EOP( { (*eve)[i % num_eve],
125 (*dsp)[i % num_dsp] } ));
127 AllocateMemory(EOPs);
129 // Process frames with EOs in a pipelined manner
130 // additional num_eos iterations to flush the pipeline (epilogue)
131 int num_eops = EOPs.size();
132 for (int frame_idx = 0; frame_idx < c.numFrames + num_eops; frame_idx++)
133 {
134 EOP* eop = EOPs[frame_idx % num_eops];
136 // Wait for previous frame on the same eo to finish processing
137 if (eop->ProcessFrameWait())
138 {
139 ReportTime(eop);
141 // The reference output is valid only for the first frame
142 // processed on each EOP
143 if (frame_idx < num_eops && !CheckFrame(eop, ref_output))
144 status = false;
145 }
147 // Read a frame and start processing it with current eo
148 if (ReadFrame(eop, frame_idx, c, input))
149 eop->ProcessFrameStartAsync();
150 }
152 FreeMemory(EOPs);
154 }
155 catch (tidl::Exception &e)
156 {
157 std::cerr << e.what() << std::endl;
158 status = false;
159 }
161 input.close();
163 return status;
164 }
166 // Create an Executor with the specified type and number of EOs
167 Executor* CreateExecutor(DeviceType dt, int num, const Configuration& c,
168 int layer_group_id)
169 {
170 if (num == 0) return nullptr;
172 DeviceIds ids;
173 for (int i = 0; i < num; i++)
174 ids.insert(static_cast<DeviceId>(i));
176 return new Executor(dt, ids, c, layer_group_id);
177 }