From 78d77a1ebcced00334583aaded7e8e0dcda933a8 Mon Sep 17 00:00:00 2001
From: Joseph Schuchart <joseph.schuchart@stonybrook.edu>
Date: Thu, 21 Nov 2024 09:03:23 -0500
Subject: [PATCH 1/3] Destroy device coroutine once all sends have been issued

Signed-off-by: Joseph Schuchart <joseph.schuchart@stonybrook.edu>
---
 ttg/ttg/parsec/ttg.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ttg/ttg/parsec/ttg.h b/ttg/ttg/parsec/ttg.h
index 47ab79068..b0b94a902 100644
--- a/ttg/ttg/parsec/ttg.h
+++ b/ttg/ttg/parsec/ttg.h
@@ -3837,6 +3837,7 @@ namespace ttg_parsec {
             task->tt->set_outputs_tls_ptr(old_output_tls_ptr);
             detail::parsec_ttg_caller = nullptr;
           }
+          dev_task.destroy(); // safe to destroy the coroutine now
         }
 #endif // TTG_HAVE_DEVICE
         /* the coroutine should have completed and we cannot access the promise anymore */

From 1978022af7089b6ec4be6c9e6dc122472f9ffebc Mon Sep 17 00:00:00 2001
From: Joseph Schuchart <joseph.schuchart@stonybrook.edu>
Date: Thu, 21 Nov 2024 09:08:51 -0500
Subject: [PATCH 2/3] Remove more superfluous parameter packs from device
 sendv/bcast

Signed-off-by: Joseph Schuchart <joseph.schuchart@stonybrook.edu>
---
 ttg/ttg/device/task.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/ttg/ttg/device/task.h b/ttg/ttg/device/task.h
index 476119886..a6b83eaf2 100644
--- a/ttg/ttg/device/task.h
+++ b/ttg/ttg/device/task.h
@@ -244,8 +244,7 @@ namespace ttg::device {
   }
 
 
-  template <std::size_t i, typename valueT, typename... out_keysT, typename... out_valuesT,
-            ttg::Runtime Runtime = ttg::ttg_runtime>
+  template <std::size_t i, typename valueT, ttg::Runtime Runtime = ttg::ttg_runtime>
   inline detail::send_t sendv(valueT &&value) {
     return sendv(i, std::forward<valueT>(value));
   }
@@ -283,8 +282,7 @@ namespace ttg::device {
       }
     }
 
-    template <size_t KeyId, size_t I, size_t... Is, typename... RangesT, typename valueT,
-              typename... out_keysT, typename... out_valuesT>
+    template <size_t KeyId, size_t I, size_t... Is, typename... RangesT, typename valueT>
     inline void prepare_broadcast(const std::tuple<RangesT...> &keylists, valueT &&value) {
       using key_t = typename broadcast_keylist_trait<
                       std::tuple_element_t<KeyId, std::tuple<std::remove_reference_t<RangesT>...>>

From d623e873c743cc2f3bf2f77423641297c3c64c0d Mon Sep 17 00:00:00 2001
From: Joseph Schuchart <joseph.schuchart@stonybrook.edu>
Date: Thu, 21 Nov 2024 09:10:55 -0500
Subject: [PATCH 3/3] PaRSEC requires last_data_check_epoch to be initialized
 to non-zero

No dox, no problem.

Signed-off-by: Joseph Schuchart <joseph.schuchart@stonybrook.edu>
---
 ttg/ttg/parsec/ttg.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ttg/ttg/parsec/ttg.h b/ttg/ttg/parsec/ttg.h
index b0b94a902..27755eea5 100644
--- a/ttg/ttg/parsec/ttg.h
+++ b/ttg/ttg/parsec/ttg.h
@@ -1507,7 +1507,7 @@ namespace ttg_parsec {
         PARSEC_OBJ_CONSTRUCT(gpu_task, parsec_list_item_t);
         gpu_task->ec = parsec_task;
         gpu_task->task_type = 0; // user task
-        gpu_task->last_data_check_epoch = 0; // used internally
+        gpu_task->last_data_check_epoch = std::numeric_limits<uint64_t>::max(); // used internally
         gpu_task->pushout = 0;
         gpu_task->submit = &TT::device_static_submit<Space>;