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Selected MaxCompiler Examples

Selected MaxCompiler Examples. Sasa Stojanovic stojsasa@etf.rs. E#1: Hello world E#2: Vector addition E#3: Type mixing E#4: Addition of a constant and a vector E#5: Input/output control E#6: Conditional execution E#7: Moving average 1D E#8: Moving average 2D E#9: Array summation

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Selected MaxCompiler Examples

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  1. Selected MaxCompiler Examples SasaStojanovic stojsasa@etf.rs

  2. E#1: Hello world E#2: Vector addition E#3: Type mixing E#4: Addition of a constant and a vector E#5: Input/output control E#6: Conditional execution E#7: Moving average 1D E#8: Moving average 2D E#9: Array summation E#10: Optimization of E#9 Content

  3. Write a program that sends the “Hello World!” stringto the MAX2 card, for the MAX2 card kernelto return it back to the host. To be learned through this example: • How to make the configuration of the accelerator (MAX2 card) using Java: • How to make a simple kernel (ops description) using Java (the only language), • How to write the standard manager (config description based on kernel(s))using Java, • How to test the kernel using a test (code+data) written in Java, • How to compile the Java code for MAX2, • How to write a simple C code that runs on the hostand triggers the kernel, • How to write the C code that streams data to the kernel, • How to write the C code that accepts data from the kernel, • How to simulate and execute an application program in Cthat runs on the host and periodically calls the accelerator. Example No. 1 Example No.1: Hello World!

  4. One or more kernel files, to define operations of the application: • <app_name>Kernel[<additional_name>].java One (or more) Java file, for simulation of the kernel(s): • <app_name>SimRunner.java One manager file for transforming the kernel(s) into the configuration of the MAX card(instantiation and connection of kernels): • <app_name>Manager.java Simulator builder: • <app_name>HostSimBuilder.java Hardware builder: • <app_name>HWBuilder.java Application code that uses the MAX card accelerator: • <app_name>HostCode.c Makefile • A script file that defines the compilation related commands Example No. 1 Standard Files in a MAX Project

  5. package ind.z1; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.kernelcompiler.KernelParameters; import com.maxeler.maxcompiler.v1.kernelcompiler.types.base.HWVar; public class helloKernel extends Kernel { public helloKernel(KernelParameters parameters) { super(parameters); // Input: HWVar x = io.input("x", hwInt(8)); HWVar result = x; // Output: io.output("z", result, hwInt(8)); } } Example No. 1 example1Kernel.java It is possible to substitute the last three lines with: io.output("z", result, hwInt(8));

  6. package ind.z1; import com.maxeler.maxcompiler.v1.managers.standard.SimulationManager; public class helloSimRunner { public static void main(String[] args) { SimulationManager m = new SimulationManager(“helloSim"); helloKernel k = new helloKernel( m.makeKernelParameters() ); m.setKernel(k); m.setInputData("x", 1, 2, 3, 4, 5, 6, 7, 8); m.setKernelCycles(8); m.runTest(); m.dumpOutput(); double expectedOutput[] = { 1, 2, 3, 4, 5, 6, 7, 8 }; m.checkOutputData("z", expectedOutput); m.logMsg("Test passed OK!"); } } Example No. 1 example1SimRunner.java

  7. package ind.z1; import static config.BoardModel.BOARDMODEL; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.managers.standard.Manager; import com.maxeler.maxcompiler.v1.managers.standard.Manager.IOType; public class helloHostSimBuilder { public static void main(String[] args) { Manager m = new Manager(true,”helloHostSim", BOARDMODEL); Kernel k = new helloKernel(m.makeKernelParameters(“helloKernel")); m.setKernel(k); m.setIO(IOType.ALL_PCIE); m.build(); } } Example No. 1 example1HostSimBuilder.java

  8. package ind.z1; import static config.BoardModel.BOARDMODEL; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.managers.standard.Manager; import com.maxeler.maxcompiler.v1.managers.standard.Manager.IOType; public class helloHWBuilder { public static void main(String[] args) { Manager m = new Manager(“hello", BOARDMODEL); Kernel k = new helloKernel( m.makeKernelParameters() ); m.setKernel(k); m.setIO(IOType.ALL_PCIE); m.build(); } } Example No. 1 example1HwBuilder.java

  9. #include <stdio.h> #include <MaxCompilerRT.h> int main(intargc, char* argv[]) { char *device_name = (argc==2 ? argv[1] : "/dev/maxeler0"); max_maxfile_t* maxfile; max_device_handle_t* device; char data_in1[16] = "Hello world!"; char data_out[16]; printf("Opening and configuring FPGA.\n"); maxfile = max_maxfile_init_hello(); device = max_open_device(maxfile, device_name); max_set_terminate_on_error(device); Example No. 1 example1HostCode.c 1/2

  10. printf("Streaming data to/from FPGA...\n"); max_run(device, max_input("x", data_in1, 16 * sizeof(char)), max_output("z", data_out, 16 * sizeof(char)), max_runfor(“helloKernel", 16), max_end()); printf("Checking data read from FPGA.\n"); max_close_device(device); max_destroy(maxfile); return 0; } Example No. 1 example1HostCode.c 2/2

  11. # Root of the project directory tree BASEDIR=../../.. # Java package name PACKAGE=ind/z1 # Application name APP=example1 # Names of your maxfiles HWMAXFILE=$(APP).max HOSTSIMMAXFILE=$(APP)HostSim.max # Java application builders HWBUILDER=$(APP)HWBuilder.java HOSTSIMBUILDER=$(APP)HostSimBuilder.java SIMRUNNER=$(APP)SimRunner.java # C host code HOSTCODE=$(APP)HostCode.c # Target board BOARD_MODEL=23312 # Include the master makefile.include nullstring := space := $(nullstring) # comment MAXCOMPILERDIR_QUOTE:=$(subst $(space),\ ,$(MAXCOMPILERDIR)) include $(MAXCOMPILERDIR_QUOTE)/examples/common/Makefile.include Example No. 1 Makefile

  12. package config; import com.maxeler.maxcompiler.v1.managers.MAX2BoardModel; public class BoardModel { public static final MAX2BoardModel BOARDMODEL = MAX2BoardModel.MAX2336B; } Example No. 1 BoardModel.java

  13. Types Hardware Types

  14. Floating point numbers - HWFloat: • hwFloat(exponent_bits, mantissa_bits); • float ~ hwFloat(8,24) • double ~ hwFloat(11,53) Fixed point numbers - HWFix: • hwFix(integer_bits, fractional_bits, sign_mode) • SignMode.UNSIGNED • SignMode.TWOSCOMPLEMENT Integers - HWFix: • hwInt(bits) ~ hwFix(bits, 0, SignMode.TWOSCOMPLEMENT) Unsigned integers - HWFix: • hwUint(bits) ~ hwFix(bits, 0, SignMode.UNSIGNED) Boolean – HWFix: • hwBool() ~ hwFix(1, 0, SignMode.UNSIGNED) • 1 ~ true • 2 ~ false Raw bits – HWRawBits: • hwRawBits(width) Types Hardware Primitive Types

  15. Write a program that adds two arrays of floating point numbers. Program reads the size of arrays, makes two arrayswith an arbitrary content (test inputs), and adds them using a MAX card. Example No. 2 Example No. 2: Vector Addition

  16. package ind.z2; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.kernelcompiler.KernelParameters; import com.maxeler.maxcompiler.v1.kernelcompiler.types.base.HWVar; public class example2Kernel extends Kernel { public example2Kernel(KernelParameters parameters) { super(parameters); // Input HWVar x = io.input("x", hwFloat(8,24)); HWVar y = io.input("y", hwFloat(8,24)); HWVar result = x + y; // Output io.output("z", result, hwFloat(8,24)); } } Example No. 2 example2Kernel.Java

  17. package ind.z2; import com.maxeler.maxcompiler.v1.managers.standard.SimulationManager; public class example2SimRunner { public static void main(String[] args) { SimulationManager m = new SimulationManager("example2Sim"); example2Kernel k = new example2Kernel( m.makeKernelParameters() ); m.setKernel(k); m.setInputData("x", 1, 2, 3, 4, 5, 6, 7, 8); m.setInputData("y", 2, 3, 4, 5, 6, 7, 8, 9); m.setKernelCycles(8); m.runTest(); m.dumpOutput(); double expectedOutput[] = { 3, 5, 7, 9, 11, 13, 15, 17 }; m.checkOutputData("z", expectedOutput); m.logMsg("Test passed OK!"); } } Example No. 2 example2SimRunner.java

  18. package ind.z2; import static config.BoardModel.BOARDMODEL; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.managers.standard.Manager; import com.maxeler.maxcompiler.v1.managers.standard.Manager.IOType; public class example2HostSimBuilder { public static void main(String[] args) { Manager m = new Manager(true,"example2HostSim", BOARDMODEL); Kernel k = new example2Kernel( m.makeKernelParameters("example2Kernel") ); m.setKernel(k); m.setIO(IOType.ALL_PCIE); m.build(); } } Example No. 2 example2HostSimBuilder.java

  19. package ind.z2; import static config.BoardModel.BOARDMODEL; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.managers.standard.Manager; import com.maxeler.maxcompiler.v1.managers.standard.Manager.IOType; public class example2HWBuilder { public static void main(String[] args) { Manager m = new Manager("example2", BOARDMODEL); Kernel k = new example2Kernel( m.makeKernelParameters() ); m.setKernel(k); m.setIO(IOType.ALL_PCIE); m.build(); } } Example No. 2 example2HWBuilder.java

  20. #include <stdio.h> #include <stdlib.h> #include <MaxCompilerRT.h> int main(intargc, char* argv[]) { char *device_name = (argc==2 ? argv[1] : "/dev/maxeler0"); max_maxfile_t* maxfile; max_device_handle_t* device; float *data_in1, *data_in2, *data_out; unsigned long N, i; printf("Enter size of array: "); scanf("%lu",&N); data_in1 = malloc(N * sizeof(float)); data_in2 = malloc(N * sizeof(float)); data_out = malloc(N * sizeof(float)); for(i = 0; i < N; i++){ data_in1[i] = i%10; data_in2[i] = i%3; } printf("Opening and configuring FPGA.\n"); Example No. 2 example2HostCode.c 1/2

  21. maxfile = max_maxfile_init_example2(); device = max_open_device(maxfile, device_name); max_set_terminate_on_error(device); printf("Streaming data to/from FPGA...\n"); max_run(device, max_input("x", data_in1, N * sizeof(float)), max_input("y", data_in2, N * sizeof(float)), max_output("z", data_out, N * sizeof(float)), max_runfor("example2Kernel", N), max_end()); printf("Checking data read from FPGA.\n"); for(i = 0; i < N; i++) if (data_out[i] != i%10 + i%3){ printf("Error on element %d. Expected %f, but found %f.", i, (float)(i%10+i%3), data_out[i]); break; } max_close_device(device); max_destroy(maxfile); return 0; } Example No. 2 example2HostCode.c 2/2

  22. Do the same as in the example no 2, with the following modification: one input array contains floating point numbers,and the other one contains integers. Example No. 3 Example No. 3: Type Mixing

  23. Casting here means moving data from one form to another,without changing their essence. Type is: • specified for inputs and outputs, • propagated from inputs, down the dataflow graph to outputs, • used to check that output stream has correct type. If conversion is needed, explicit conversion (cast) is required How to do it? • use the method cast in class HWVar, Additional hardware required(especially for conversion to or from floating point numbers), • introduces additional latency. Cast between a floating point number and an integer number is done by rounding to the nearest integer! Example No. 3 Type Conversion

  24. package ind.z3; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.kernelcompiler.KernelParameters; import com.maxeler.maxcompiler.v1.kernelcompiler.types.base.HWVar; public class example3Kernel extends Kernel { public example3Kernel(KernelParameters parameters) { super(parameters); // Input HWVar x = io.input("x", hwFloat(8,24)); HWVar y = io.input("y", hwInt(32)); HWVar result = x + y.cast(hwFloat(8,24)); // Output io.output("z", result, hwFloat(8,24)); } } Example No. 3 example3Kernel.Java

  25. package ind.z3; import com.maxeler.maxcompiler.v1.managers.standard.SimulationManager; public class example3SimRunner { public static void main(String[] args) { SimulationManager m = new SimulationManager("example3Sim"); example3Kernel k = new example3Kernel( m.makeKernelParameters() ); m.setKernel(k); m.setInputData("x", 1, 2, 3, 4, 5, 6, 7, 8); m.setInputData("y", 2, 3, 4, 5, 6, 7, 8, 9); m.setKernelCycles(8); m.runTest(); m.dumpOutput(); double expectedOutput[] = { 3, 5, 7, 9, 11, 13, 15, 17 }; m.checkOutputData("z", expectedOutput); m.logMsg("Test passed OK!"); } } Example No. 3 example3SimRunner.java

  26. #include <stdio.h> #include <stdlib.h> #include <MaxCompilerRT.h> int main(intargc, char* argv[]) { char *device_name = (argc==2 ? argv[1] : "/dev/maxeler0"); max_maxfile_t* maxfile; max_device_handle_t* device; float *data_in1, *data_out; int *data_in2; unsigned long N, i; printf("Enter size of array: "); scanf("%lu",&N); data_in1 = malloc(N * sizeof(float)); data_in2 = malloc(N * sizeof(int)); data_out = malloc(N * sizeof(float)); for(i = 0; i < N; i++){ data_in1[i] = i%10; data_in2[i] = i%3; } printf("Opening and configuring FPGA.\n"); Example No. 3 example3HostCode.c 1/2

  27. maxfile = max_maxfile_init_example3(); device = max_open_device(maxfile, device_name); max_set_terminate_on_error(device); printf("Streaming data to/from FPGA...\n"); max_run(device, max_input("x", data_in1, N * sizeof(float)), max_input("y", data_in2, N * sizeof(int)), max_output("z", data_out, N * sizeof(float)), max_runfor("example3Kernel", N), max_end()); printf("Checking data read from FPGA.\n"); for(i = 0; i < N; i++){ if (data_out[i] != i%10 + i%3){ printf("Error on element %d. Expected %f, but found %f.", i, (float)(i%10+i%3), data_out[i]); break; } } max_close_device(device); max_destroy(maxfile); return 0; } Example No. 3 example3HostCode.c 2/2

  28. Command: • maxRenderGraphs <build_dir> • <build_dir> - directory where the design is compiled In the virtual machine, directory “Desktop/MaxCompiler-Builds”contains the build directories. Example for application “example2”: • maxRenderGraphs example2HostSim • Renders graphs for the resulting max file Generating Graph Generating Graph

  29. Generating Graph Final Kernel Graph for Example No 2

  30. Generating Graph Final Kernel Graph for Example No 3

  31. Write a program that adds a constant to an array that contains floating point numbers. Program: • reads the size of the array andthe constant that will add to elements of the array, • makes one array in an arbitrary way, and • adds the constant to the array using the MAX card. Example No. 4 Example No. 4: Addition of a Constant and a Vector

  32. package ind.z4; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.kernelcompiler.KernelParameters; import com.maxeler.maxcompiler.v1.kernelcompiler.types.base.HWVar; public class example4Kernel extends Kernel { public example4Kernel(KernelParameters parameters) { super(parameters); // Input HWVar x = io.input("x", hwFloat(8,24)); HWVar y = io.scalarInput("y", hwFloat(8,24)); HWVar result = x + y; // Output io.output("z", result, hwFloat(8,24)); } } Example No. 4 Example4Kernel.java

  33. example4SimRunner.java: • Before the kernel run, invoke: setScalarInput(“y”,2); example4HostCode.c: • Read const from standard input, • After the device is opened, but before run, set scalar inputs: max_set_scalar_input_f(device, “example4Kernel.y”, const_add, FPGA_A); max_upload_runtime_params(device, FPGA_A); Example No. 4 Other Modifications in Example 4

  34. Do the same as in example no 4, with the following modification:use controlled inputs and counters. Example No. 5 Example No. 5: Input/Output Control

  35. package ind.z5; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.kernelcompiler.KernelParameters; import com.maxeler.maxcompiler.v1.kernelcompiler.types.base.HWVar; public class example5Kernel extends Kernel { public example5Kernel(KernelParameters parameters) { super(parameters); HWVarie = control.count.simpleCounter(32); // Input HWVar x = io.input("x", hwFloat(8,24)); HWVar y = io.input("y", hwFloat(8,24), ie.eq(0)); HWVar result = x + y; // Output io.output("z", result, hwFloat(8,24)); } } Example No. 5 example5Kernel.java

  36. package ind.z5; import com.maxeler.maxcompiler.v1.managers.standard.SimulationManager; public class example5SimRunner { public static void main(String[] args) { SimulationManager m = new SimulationManager("example5Sim"); example5Kernel k = new example5Kernel( m.makeKernelParameters() ); m.setKernel(k); m.setInputData("x", 1, 2, 3, 4, 5, 6, 7, 8); m.setInputData("y", 2); m.setKernelCycles(8); m.runTest(); m.dumpOutput(); double expectedOutput[] = { 3, 4, 5, 6, 7, 8, 9, 10 }; m.checkOutputData("z", expectedOutput); m.logMsg("Test passed OK!"); } } Example No. 5 example5SimRunner.java

  37. #include <stdio.h> #include <stdlib.h> #include <MaxCompilerRT.h> int main(intargc, char* argv[]) { char *device_name = (argc==2 ? argv[1] : "/dev/maxeler0"); max_maxfile_t* maxfile; max_device_handle_t* device; float *data_in1, data_in2[2], *data_out; unsigned long N, i; printf("Enter size of array: "); scanf("%lu%f",&N, data_in2); data_in1 = malloc(N * sizeof(float)); data_out = malloc(N * sizeof(float)); for(i = 0; i < N; i++) data_in1[i] = i%10; printf("Opening and configuring FPGA.\n"); maxfile = max_maxfile_init_example5(); device = max_open_device(maxfile, device_name); max_set_terminate_on_error(device); Example No. 5 example5HostCode.c 1/2

  38. printf("Streaming data to/from FPGA...\n"); max_run(device, max_input("x", data_in1, N * sizeof(float)), max_input("y", data_in2, 2 * sizeof(float)), max_output("z", data_out, N * sizeof(float)), max_runfor("example5Kernel", N), max_end()); printf("Checking data read from FPGA.\n"); for(i = 0; i < N; i++){ if (data_out[i] != i%10 + data_in2[0]){ printf("Error on element %d. Expected %f, but found %f.", i, (float)(i%10+data_in2[0]), data_out[i]); break; } } max_close_device(device); max_destroy(maxfile); return 0; } Example No. 5 example5HostCode.c 1/2

  39. Translate the following part of code for the Maxeler MAX2 card: for(inti=0; i<N; i++) if(a[i] != b[i]){ c[i] = b[i]-a[i]; d[i] = a[i]*b[i]/c[i]; }else { c[i] = a[i]; d[i] = a[i]+b[i]; } Example No. 6 Example No. 6: Conditional Execution

  40. package ind.z6; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.kernelcompiler.KernelParameters; import com.maxeler.maxcompiler.v1.kernelcompiler.types.base.HWVar; public class example6Kernel extends Kernel { public example6Kernel(KernelParameters parameters) { super(parameters); // Input HWVar a = io.input("a", hwFloat(8,24)); HWVar b = io.input("b", hwFloat(8,24)); HWVar c = ~a.eq(b)?b-a:a; HWVar d = ~a.eq(b)?a*b/c:a+b; // Output io.output("c", c, hwFloat(8,24)); io.output("d", d, hwFloat(8,24)); } } Example No. 6 example6Kernel.java

  41. package ind.z6; import com.maxeler.maxcompiler.v1.managers.standard.SimulationManager; public class example6SimRunner { public static void main(String[] args) { SimulationManager m = new SimulationManager("example6Sim"); example6Kernel k = new example6Kernel( m.makeKernelParameters() ); m.setKernel(k); m.setInputData("a", 1, 3); m.setInputData("b", 2, 3); m.setKernelCycles(2); m.runTest(); m.dumpOutput(); double expectedOutputc[] = { 1, 3 }; double expectedOutputd[] = { 2, 6 }; m.checkOutputData("c", expectedOutputc); m.checkOutputData("d", expectedOutputd); m.logMsg("Test passed OK!"); } } Example No. 6 example6SimRunner.java

  42. Write a program that calculatesmoving average over an array,calculating the average valuefor each one of the three successive elements of the input array. (a[0]+a[1])/2 , for i = 0; avg[i] = (a[i-1]+a[i]+a[i+1])/3 , for 0 < i < n-1; (a[n-2]+a[n-3], for i = n-1. Example No. 7 Example No. 7: Moving Average 1D

  43. package ind.z7; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.kernelcompiler.KernelParameters; import com.maxeler.maxcompiler.v1.kernelcompiler.types.base.HWVar; public class example7Kernel extends Kernel { public example7Kernel(KernelParameters parameters) { super(parameters); HWVar N = io.scalarInput("N", hwUInt(64)); HWVar count = control.count.simpleCounter(64); // Input HWVar x = io.input("x", hwFloat(8,24)); HWVar result = ( (count>0?stream.offset(x,-1):0) + x + (count<N-1?stream.offset(x,1):0) )/ (count>0&count<N-1? constant.var(hwFloat(8,24),3):2); // Output io.output("z", result, hwFloat(8,24)); } } Example No. 7 example7Kernel.java

  44. Write a program that calculatesmoving average along a 2D matrix of the size MxN. Transfer the matrix to the MAX2 cardthrough one stream,row by row. Example No. 8 Example No. 8: Moving Average 2D

  45. package ind.z8; import com.maxeler.maxcompiler.v1.kernelcompiler.Kernel; import com.maxeler.maxcompiler.v1.kernelcompiler.KernelParameters; import com.maxeler.maxcompiler.v1.kernelcompiler.stdlib.core.CounterChain; import com.maxeler.maxcompiler.v1.kernelcompiler.stdlib.core.Stream.OffsetExpr; import com.maxeler.maxcompiler.v1.kernelcompiler.types.base.HWVar; public class example8Kernel extends Kernel { public example8Kernel(KernelParameters parameters) { super(parameters); HWVar M = io.scalarInput("M", hwUInt(32)); OffsetExprNof = stream.makeOffsetParam("Nof", 3, 128); HWVar N = io.scalarInput("N", hwUInt(32)); CounterChain cc = control.count.makeCounterChain(); HWVar j = cc.addCounter(M,1); HWVari = cc.addCounter(N,1); Example No. 8 example8Kernel.java 1/2

  46. // Input HWVar mat = io.input("mat", hwFloat(8,24)); // Extract 8 point window around current point HWVar window[] = new HWVar[9]; int ii = 0; for ( int x=-1; x<=1; x++) for ( int y= -1; y<=1; y++) window[ii++] = (i.cast(hwInt(33))+x>=0 & i.cast(hwInt(33))+x<= N.cast(hwInt(33))-1 & j.cast(hwInt(33))+y >= 0 & j.cast(hwInt(33))+y<=M.cast(hwInt(33))-1)?stream.offset(mat, y*Nof+x):0; // Sum points in window and divide by 9 to average HWVar sum = constant.var(hwFloat(8, 24), 0); for ( HWVarhwVar : window) { sum = sum + hwVar; } HWVar divider = i.eq(0)|i.eq(N-1)|j.eq(0)|j.eq(M-1)?((i.eq(0)|i.eq(N-1))&(j.eq(0)|j.eq(M-1))?constant.var(hwFloat(8,24),4):6):9; HWVar result = sum / divider; // Output io.output("z", result, hwFloat(8,24)); } } Example No. 8 example8Kernel.java 2/2

  47. package ind.z8; import com.maxeler.maxcompiler.v1.managers.standard.SimulationManager; public class example8SimRunner { public static void main(String[] args) { SimulationManager m = new SimulationManager("example8Sim"); example8Kernel k = new example8Kernel( m.makeKernelParameters() ); m.setKernel(k); m.setInputData("mat", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,11,12, 13,14,15,16); m.setScalarInput("M", 4); m.setScalarInput("N", 4); m.setStreamOffsetParam("Nof",4); m.setKernelCycles(16); m.runTest(); m.dumpOutput(); double expectedOutput[] = { 3.5, 4, 5, 5.5, 5.5, 6, 7, 7.5, 9.5, 10, 11, 11.5, 11.5, 12, 13, 13.5 }; m.checkOutputData("z", expectedOutput); m.logMsg("Test passed OK!"); } } Example No. 8 example8SimRunner.java

  48. #include <stdio.h> #include <stdlib.h> #include <MaxCompilerRT.h> int main(intargc, char* argv[]) { char *device_name = (argc==2 ? argv[1] : "/dev/maxeler0"); max_maxfile_t* maxfile; max_device_handle_t* device; float *data_in1, *data_in2, *data_out; unsigned long M, N, i; printf("Enter size of matrix (MxN, max 1024x1024): "); scanf("%lu%lu",&M,&N); data_in1 = malloc(M*N * sizeof(float)); data_out = malloc(M*N * sizeof(float)); for(i = 0; i < M*N; i++){ data_in1[i] = i%10; } printf("Opening and configuring FPGA.\n"); maxfile = max_maxfile_init_example8(); device = max_open_device(maxfile, device_name); max_set_terminate_on_error(device); Example No. 8 example8HostCode.java 1/2

  49. max_set_scalar_input_f(device, "example8Kernel.M", M, FPGA_A); max_set_scalar_input_f(device, "example8Kernel.N", N, FPGA_A); max_set_runtime_param(device, "example8Kernel.Nof", N); max_upload_runtime_params(device, FPGA_A); printf("Streaming data to/from FPGA...\n"); max_run(device, max_input("mat", data_in1, M*N * sizeof(float)), max_output("z", data_out, M*N * sizeof(float)), max_runfor("example8Kernel", M*N), max_end()); printf("Checking data read from FPGA.\n"); for(i = 0; i < M*N; i++){ float expected=0, divider = 9; for (int ii = -1; ii<2; ii++) for(intjj = -1; jj<2; jj++) expected += i/N+ii>=0 && i/N+ii<M && i%N+jj>=0 && i%N+jj<N ?data_in1[i+ii*N+jj]:0; if (i/N==0 || i/N==M-1) divider = 6; if (i%N==0 || i%N==N-1) divider = divider == 6? 4:6; expected /= divider; if (data_out[i] != expected){ printf("Error on element %d. Expected %f, but found %f.", i, expected, data_out[i]); break; } } max_close_device(device); max_destroy(maxfile); return 0; } Example No. 8 example8HostCode.java 2/2

  50. Write a program that calculatesthe sum of n floating point numbers. Example No. 9 Example No. 9: Array summation

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