[CK_TILE] Update example README files & fix script compatibility issue (#1548)

* Fix text alignment of ArgParser::print()

* Update example README files

* Clarify make-ck-dev.sh <arch> usage

* Only keep some of the argument from '-?' output

* Undo command line output changes in README

* Only keep existing argument on doc and update description

* Fix text alignment

* Make cmake-ck-*.sh compatible with 'sh' command

example/ck_tile/01_fmha/README.md

@@ -6,7 +6,8 @@ This folder contains example for fmha(fused multi-head attention) using ck_tile
 ```
 # in the root of ck_tile
 mkdir build && cd build
-sh ../script/cmake-ck-dev.sh  ../ <arch>  # you can replace this <arch> to gfx90a, gfx942...
+# you can replace <arch> with the appropriate architecture (for example gfx90a or gfx942) or leave it blank
+sh ../script/cmake-ck-dev.sh  ../ <arch>
 make tile_example_fmha_fwd -j
 ```
 This will result in an executable `build/bin/tile_example_fmha_fwd`
@@ -23,7 +24,7 @@ There are 3 template parameters for this kernel template.
 To speed up compile time, we instantiate the kernels into separate file. In this way we can benefit from parallel building from CMake/Make system. This is achieved by `generate.py` script. Besides, you can look into this script to learn how to instantiate a kernel instance step by step, which is described in `FMHA_FWD_KERNEL_BODY` variable.
 
 ## executable
-`tile_example_fmha_fwd` is the example executable, implemented in `fmha_fwd.cpp`. You can type `./bin/tile_example_fmha_fwd -?` to list all supported args. Below is an example of the output (may subject to change)
+`tile_example_fmha_fwd` is the example executable, implemented in `fmha_fwd.cpp`. You can type `./bin/tile_example_fmha_fwd -?` to list all the arguments. Below is an example of the output (may subject to change)
 ```
 args:
           -v    weather do CPU validation or not (default:1)
@@ -35,7 +36,7 @@ args:
           -s    seqlen_q. if group-mode, means the average value of seqlen_q (default:3328)
                 total_seqlen_q = seqlen_q * batch, and seqlen_q per batch may vary
                 also with "-s=s0,s1,s2..." comma seperated int to set per batch seqlen(group-mode)
-        -s_k    seqlen_k, -1 means equal to s (default:-1)
+        -s_k    seqlen_k (including new key/value), -1 means equal to s (default:-1)
           -d    head dim for q, k (default:128)
         -d_v    head dim for v, -1 means equal to d (default:-1)
     -scale_s    scale factor of S. 0 means equal to 1/sqrt(hdim). (default:0)
@@ -68,11 +69,11 @@ args:
        -init    init method. ui, uniform random int, ni, normalized random int (default:uf)
                 uf, uniform random float, nf, normalized random float, tf, trig float, uf:q, quantization
        -seed    random seed used for initializing input tensors. 0 for non-deterministic seed (default:11939)
+  -drop_seed    seed for random number generator (default:1)
+-drop_offset    offset for random number generator (default:0)
+ -drop_prefs    seed and offset values are present on GPU; 0 - host, 1 - device/GPU (default:0)
      -warmup    number of iterations before benchmark the kernel (default:5)
      -repeat    number of iterations to benchmark the kernel (default:20)
-  -drop_seed    seed for the random number generator for the dropout layer, default is 1
--drop_offset    offset for the dropout layer which is used during random number generation, default is 0
- -drop_prefs    flag to indicate `drop_seed` and `drop_offset` values if present on the GPU, default is 0, 0 - host, 1 - GPU
 ```
 Example 1: `./bin/tile_example_fmha_fwd -b=1 -h=16 -s=16384 -d=128` will run a fmha case with batch=1, nhead=16, sequence length=16384, hdim=128, fp16 case.
 Example 2: `./bin/tile_example_fmha_fwd -b=1 -h=8 -s=16384 -d=64 -drop_prefs=1 -drop_seed=10 -drop_offset=1234` will run a fmha case with 

example/ck_tile/02_layernorm2d/README.md

@@ -6,7 +6,8 @@ This folder contains example for Layernorm2D forward using ck_tile tile-programm
 ```
 # in the root of ck_tile
 mkdir build && cd build
-sh ../script/cmake-ck-dev.sh  ../ <arch>  # you can replace this <arch> to gfx90a, gfx942...
+# you can replace <arch> with the appropriate architecture (for example gfx90a or gfx942) or leave it blank
+sh ../script/cmake-ck-dev.sh  ../ <arch>
 make tile_example_layernorm2d_fwd -j
 ```
 This will result in an executable `build/bin/tile_example_layernorm2d_fwd`

example/ck_tile/03_gemm/README.md

@@ -6,7 +6,8 @@ This folder contains example for GEMM using ck_tile tile-programming implementat
 ```
 # in the root of ck_tile
 mkdir build && cd build
-sh ../script/cmake-ck-dev.sh  ../ <arch>  # you can replace this <arch> to gfx90a, gfx942...
+# you can replace <arch> with the appropriate architecture (for example gfx90a or gfx942) or leave it blank
+sh ../script/cmake-ck-dev.sh  ../ <arch>
 make tile_example_gemm_basic -j
 ```
 This will result in an executable `build/bin/tile_example_gemm_basic`
@@ -14,10 +15,17 @@ This will result in an executable `build/bin/tile_example_gemm_basic`
 ## example
 ```
 args:
-          -m    m dimension (default:3328)
-          -n    m dimension (default:4096)
+          -b    batch size (default:1)
+          -m    m dimension (default:1024)
+          -n    n dimension (default:2048)
           -k    k dimension (default:64)
-          -e    epsilon (default:1e-5)
-          -v    cpu validation or not (default:1)
-       -prec    precision (default:fp16)
+   -stride_a    Tensor A stride (default:0)
+   -stride_b    Tensor B stride (default:0)
+   -stride_c    Tensor C stride (default:0)
+          -v    0. No validation, 1. Validation on CPU, 2. Validation on GPU (default:2)
+          -e    Absolute error tolerance (default:1e-5)
+       -prec    data type. fp16/bf16/fp8/bf8 (default:fp16)
+     -warmup    number of iterations before benchmark the kernel (default:10)
+     -repeat    number of iterations to benchmark the kernel (default:100)
+      -timer    gpu:gpu timer, cpu:cpu timer (default:gpu)
 ```

example/ck_tile/04_img2col/README.md

@@ -6,7 +6,8 @@ This folder contains example for Image to Column using ck_tile tile-programming
 ```
 # in the root of ck_tile
 mkdir build && cd build
-sh ../script/cmake-ck-dev.sh  ../ <arch>  # you can replace this <arch> to gfx90a, gfx942...
+# you can replace <arch> with the appropriate architecture (for example gfx90a or gfx942) or leave it blank
+sh ../script/cmake-ck-dev.sh  ../ <arch>
 make tile_example_img2col -j
 ```
 This will result in an executable `build/bin/tile_example_img2col`

include/ck_tile/host/arg_parser.hpp

@@ -50,12 +50,22 @@ class ArgParser
         }
         return *this;
     }
-    void print()
+    void print() const
     {
+        // find max key length
+        std::string::size_type max_key_length = 11;
+        for(auto& key : keys)
+        {
+            if(max_key_length < key.length())
+            {
+                max_key_length = key.length();
+            }
+        }
+
         printf("args:\n");
         for(auto& key : keys)
         {
-            auto value = input_map[key];
+            auto value = input_map.at(key);
             std::vector<std::string> help_text_lines;
             size_t pos = 0;
             for(size_t next_pos = value.help_text.find('\n', pos); next_pos != std::string::npos;)
@@ -69,8 +79,7 @@ class ArgParser
                 std::string(value.help_text.begin() + pos, value.help_text.end()));
 
             std::string default_value = std::string("(default:") + value.value + std::string(")");
-
-            std::cout << std::setw(2) << std::setw(12 - value.name.length()) << "-" << key
+            std::cout << std::setw(1 + max_key_length - value.name.length()) << "-" << key
                       << std::setw(4) << " " << help_text_lines[0] << " " << default_value
                       << std::endl;
 
@@ -78,7 +87,8 @@ class ArgParser
                 help_next_line != help_text_lines.end();
                 ++help_next_line)
             {
-                std::cout << std::setw(17) << " " << *help_next_line << std::endl;
+                std::cout << std::setw(1 + max_key_length + 4) << " " << *help_next_line
+                          << std::endl;
             }
         }
     }

script/cmake-ck-dev.sh

@@ -7,7 +7,8 @@ MY_PROJECT_SOURCE=$1
 
 if [ $# -ge 2 ] ; then
     GPU_TARGETS=$2
-    REST_ARGS=${@:3}
+    shift 2
+    REST_ARGS=$@
 else
     GPU_TARGETS="gfx908;gfx90a;gfx940"
     REST_ARGS=

script/cmake-ck-release.sh

@@ -7,7 +7,8 @@ MY_PROJECT_SOURCE=$1
 
 if [ $# -ge 2 ] ; then
     GPU_TARGETS=$2
-    REST_ARGS=${@:3}
+    shift 2
+    REST_ARGS=$@
 else
     GPU_TARGETS="gfx908;gfx90a;gfx940"
     REST_ARGS=