IVGCVSW-5644 Add documentation for cache loaded network

 * Added ModelOptions documentation to CLBackendModelContext
 * Improved options descriptions in ExecuteNetworkProgramOptions.cpp

Signed-off-by: Matthew Sloyan <matthew.sloyan@arm.com>
Change-Id: I14f0c8bb4f299809b89f49c616b691e2f7956d5b

2 files changed, 15 insertions, 2 deletions

diff --git a/src/backends/cl/ClBackendModelContext.hpp b/src/backends/cl/ClBackendModelContext.hpp
index c84cdbbfcf..e7a26cd688 100644
--- a/src/backends/cl/ClBackendModelContext.hpp
+++ b/src/backends/cl/ClBackendModelContext.hpp
@@ -16,6 +16,15 @@ namespace armnn
 ///  - "FastMathEnabled"\n
 ///    Using the fast_math flag can lead to performance improvements in fp32 and fp16 layers but may result in\n
 ///    results with reduced or different precision. The fast_math flag will not have any effect on int8 performance.
+///  - "SaveCachedNetwork"\n
+///    Using the save_cached_network flag enables saving the cached network\n
+///    to a file given with the cached_network_file_path option.
+///  - "CachedNetworkFilePath"\n
+///    If the cached_network_file_path is a valid file and the save_cached_network flag is present\n
+///    then the cached network will be saved to the given file.\n
+///    If the cached_network_file_path is a valid file and the save_cached_network flag is not present\n
+///    then the cached network will be loaded from the given file.\n
+///    This will remove the time taken for initial compilation of kernels and speed up the first execution.
 class ClBackendModelContext : public IBackendModelContext
 {
 public:
diff --git a/tests/ExecuteNetwork/ExecuteNetworkProgramOptions.cpp b/tests/ExecuteNetwork/ExecuteNetworkProgramOptions.cpp
index 002a3d1d80..a080e57d0c 100644
--- a/tests/ExecuteNetwork/ExecuteNetworkProgramOptions.cpp
+++ b/tests/ExecuteNetwork/ExecuteNetworkProgramOptions.cpp
@@ -277,13 +277,17 @@ ProgramOptions::ProgramOptions() : m_CxxOptions{"ExecuteNetwork",
                  cxxopts::value<bool>(m_ExNetParams.m_EnableFastMath)->default_value("false")->implicit_value("true"))
 
                 ("save-cached-network",
-                 "Enables saving of the cached network. "
+                 "Enables saving of the cached network to a file given with the cached-network-filepath option. "
                  "See also --cached-network-filepath",
                  cxxopts::value<bool>(m_ExNetParams.m_SaveCachedNetwork)
                  ->default_value("false")->implicit_value("true"))
 
                 ("cached-network-filepath",
-                 "If non-empty, the given file will be used to load/save cached network.",
+                 "If non-empty, the given file will be used to load/save the cached network. "
+                 "If save-cached-network is given then the cached network will be saved to the given file. "
+                 "To save the cached network a file must already exist. "
+                 "If save-cached-network is not given then the cached network will be loaded from the given file. "
+                 "This will remove initial compilation time of kernels and speed up the first execution.",
                  cxxopts::value<std::string>(m_ExNetParams.m_CachedNetworkFilePath)->default_value(""))
 
                 ("fp16-turbo-mode",